refer to the exhibit. what is the maximum possible throughput between the pc and the server

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CCNA1 v7 – ITNv7 – Practice Final – ITN Answers 2020 correct 100%

Cisco Netacad ITN Version 7.00 CCNA 1 v7 Practise Concluding – ITN Answers 2020 2021 – Introduction to Networks

1. Which 2 devices would be described every bit intermediary devices? (Choose two.)

   • wireless LAN controller
   • IPS
   • server
   • gaming console
   • retail scanner
   • assembly line robots

2. What characteristic describes spyware?

   • software that is installed on a user device and collects information nigh the user
   • an assault that slows or crashes a device or network service
   • the use of stolen credentials to access private information
   • a network device that filters access and traffic coming into a network

3. Which statement describes network security?

   • Information technology ensures sensitive corporate information is available for authorized users.
   • It prioritizes information flows in order to requite priority to filibuster-sensitive traffic.
   • It supports growth over fourth dimension in accordance with approved network design procedures.
   • It synchronizes traffic flows using timestamps.

4. What is a user trying to determine when issuing a ping 10.1.1.1 command on a PC?

   • if the TCP/IP stack is functioning on the PC without putting traffic on the wire
   • if at that place is connectivity with the destination device
   • the path that traffic will accept to accomplish the destination
   • what type of device is at the destination
     
     Answers Explanation & Hints:

     The ping destination command can be used to test connectivity.

5. What is a feature of a switch virtual interface (SVI)?​

   • Although it is a virtual interface, information technology needs to have physical hardware on the device associated with it.
   • An SVI is created in software and requires a configured IP accost and a subnet mask in order to provide remote access to the switch.
   • SVIs come preconfigured on Cisco switches.
   • SVIs do not require the no shutdown command to get enabled.
     
     Answers Caption & Hints:

     Cisco IOS switches have physical ports for devices to connect to, but also have one or more than switch virtual interfaces (SVIs). These are virtual interfaces, because there is no concrete hardware on the device associated with them, rather they are created in software. The virtual interface provides a means to remotely manage a switch over a network that is using IP. Each switch comes with one SVI appearing in the default configuration "out-of-the-box." The default SVI is interface VLAN1. The no shutdown command needs to exist issued to activate this interface.​

6. Friction match the descriptions to the terms. (Not all options are used.)

   

   CCNA1 v7 – ITNv7 – Practice Final – ITN Answers 01

   Answers Explanation & Hints:

   A GUI, or graphical user interface, allows the user to interact with the operating arrangement by pointing and clicking at elements on the screen. A CLI, or command-line interface, requires users to type commands at a prompt in society to interact with the OS. The shell is the part of the operating system that is closest to the user. The kernel is the part of the operating system that interfaces with the hardware.

7. Refer to the exhibit. An administrator is trying to configure the switch but receives the fault message that is displayed in the showroom. What is the problem?

   

   CCNA1 v7 – ITNv7 – Do Final – ITN Answers 003

   • The unabridged command, configure last , must be used.
   • The ambassador is already in global configuration mode.
   • The administrator must first enter privileged EXEC mode earlier issuing the command.
   • The administrator must connect via the panel port to access global configuration manner.
     
     Answers Explanation & Hints:

     In order to enter global configuration mode, the command configure terminal , or a shortened version such as config t , must be entered from privileged EXEC mode. In this scenario the ambassador is in user EXEC mode, as indicated by the > symbol after the hostname. The administrator would need to use the enable control to move into privileged EXEC mode before entering the configure terminal command.

8. Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?

   • bits
   • frame
   • packet
   • segment
     
     Answers Explanation & Hints:

     At the transport layer, a host computer will de-encapsulate a segment to reassemble data to an acceptable format by the application layer protocol of the TCP/IP model.

9. Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.)

   • application
   • presentation
   • session
   • transport
   • data link
   • physical
   • network
     
     Answers Explanation & Hints:

     The TCP/IP model consists of four layers: application, transport, internet, and network access. The OSI model consists of 7 layers: awarding, presentation, session, transport, network, data link, and physical. The top three layers of the OSI model: application, presentation, and session map to the application layer of the TCP/IP model.

10. Which two OSI model layers accept the same functionality as two layers of the TCP/IP model? (Choose 2.)

    • data link
    • network
    • physical
    • session
    • ship
      
      Answers Explanation & Hints:

      The OSI transport layer is functionally equivalent to the TCP/IP ship layer, and the OSI network layer is equivalent to the TCP/IP internet layer. The OSI data link and physical layers together are equivalent to the TCP/IP network access layer. The OSI session layer (with the presentation layer) is included within the TCP/IP application layer.

11. What OSI physical layer term describes the mensurate of the transfer of bits across a medium over a given period of time?

    • throughput
    • bandwidth
    • latency
    • goodput

12. Refer to the exhibit. What is the maximum possible throughput between the PC and the server?

    

    CCNA1 v7 – ITNv7 – Practice Terminal – ITN Answers 002

    • 128 kb/s
    • 10 Mb/s
    • 100 Mb/s
    • 1000 Mb/southward
      
      Answers Caption & Hints:

      The maximum throughput between whatsoever two nodes on a network is determined by the slowest link between those nodes.

13. Which 2 statements depict the characteristics of fiber-optic cabling? (Cull two.)

    • Fiber-optic cabling does not conduct electricity.
    • Fiber-optic cabling has high indicate loss.
    • Fiber-optic cabling is primarily used every bit backbone cabling.
    • Multimode fiber-optic cabling carries signals from multiple sending devices.
    • Cobweb-optic cabling uses LEDs for unmarried-manner cab​les and light amplification by stimulated emission of radiation technology for multimode cables.
      
      Answers Caption & Hints:

      Fiber-optic cabling is primarily used for high-traffic backbone cabling and does not conduct electricity. Multimode fiber uses LEDs for signaling and single-mode cobweb uses light amplification by stimulated emission of radiation technology. FIber-optic cabling carries signals from merely ane device to another.

14. Match the description with the media. (Not all options are used.)

    

    CCNA1 v7 – ITNv7 – Practise Concluding – ITN Answers 02

    Answers Explanation & Hints:

    UTP cables are used in wired office environments. Coaxial cables are used to connect cable modems and televisions. Fiber optics are used for high transmission speeds and to transfer data over long distances. STP cables are used in environments where at that place is a lot of interference.

15. Which two acronyms represent the data link sublayers that Ethernet relies upon to operate? (Choose two.)

    • CSMA
    • FCS
    • LLC
    • MAC
    • SFD
      
      Answers Caption & Hints:

      For Layer 2 functions, Ethernet relies on logical link control (LLC) and MAC sublayers to operate at the data link layer. FCS (Frame Check Sequence) and SFD (Start Frame Delimiter) are fields of the Ethernet frame. CSMA (Carrier Sense Multiple Access) is the technology Ethernet uses to manage shared media access.

16. A network team is comparing topologies for connecting on a shared media. Which concrete topology is an example of a hybrid topology for a LAN?

    • coach
    • extended star
    • ring
    • partial mesh
      
      Answers Caption & Hints:

      An extended star topology is an example of a hybrid topology as boosted switches are interconnected with other star topologies. A partial mesh topology is a mutual hybrid WAN topology. The double-decker and ring are not hybrid topology types.

17. What does a router do when it receives a Layer 2 frame over the network medium?

    • determines the best path
    • de-encapsulates the frame
    • re-encapsulates the parcel into a new frame
    • forrad the new frame appropriate to the medium of that segment of the concrete network
      
      Answers Caption & Hints:

      Routers are responsible for encapsulating a frame with the proper format for the physical network media they connect. At each hop along the path, a router does the following:Accepts a frame from a medium
      De-encapsulates the frame
      Determines the best path to forrad the packet
      Re-encapsulates the packet into a new frame
      Forwards the new frame advisable to the medium of that segment of the physical network

18. Although CSMA/CD is notwithstanding a feature of Ethernet, why is it no longer necessary?

    • the well-nigh unlimited availability of IPv6 addresses
    • the use of CSMA/CA
    • the apply of full-duplex capable Layer 2 switches
    • the development of half-duplex switch operation
    • the use of Gigabit Ethernet speeds
      
      Answers Explanation & Hints:

      The employ of Layer 2 switches operating in full-duplex mode eliminates collisions, thereby eliminating the need for CSMA/CD.

19. Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose 2.)

    • adds Ethernet control information to network protocol data
    • places information in the Ethernet frame that identifies which network layer protocol is beingness encapsulated by the frame
    • applies source and destination MAC addresses to Ethernet frame
    • implements CSMA/CD over legacy shared half-duplex media
    • integrates Layer 2 flows between 10 Gigabit Ethernet over cobweb and 1 Gigabit Ethernet over copper

20. Two network engineers are discussing the methods used to forward frames through a switch. What is an important concept related to the cutting-through method of switching?

    • The fragment-free switching offers the lowest level of latency.
    • Fast-forward switching can exist viewed equally a compromise between shop-and-forward switching and fragment-gratis switching.
    • Fragment-complimentary switching is the typical cut-through method of switching.
    • Packets can exist relayed with errors when fast-frontward switching is used.
      
      Answers Explanation & Hints:

      Fast-forward switching offers the lowest level of latency and information technology is the typical cut-through method of switching. Fragment-gratuitous switching can be viewed equally a compromise between store-and-forward switching and fast-forwards switching. Considering fast-frontwards switching starts forwarding before the entire packet has been received, there may be times when packets are relayed with errors.

21. Which two bug tin cause both runts and giants in Ethernet networks? (Cull two.)

    • a malfunctioning NIC
    • CRC errors
    • electrical interference on serial interfaces
    • half-duplex operations
    • using the incorrect cable type
      
      Answers Explanation & Hints:

      Because collisions are a normal attribute of half-duplex communications, runt and giant frames are mutual by-products of those operations. A malfunctioning NIC can as well place frames on the network that are either besides short or longer than the maximum immune length. CRC errors can event from using the wrong type of cable or from electrical interference. Using a cable that is too long can issue in late collisions rather than runts and giants.

22. What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field?

    • The switch places the new CRC value in the FCS field and forrad the frame.
    • The switch notifies the source of the bad frame.
    • The switch drops the frame.
    • The switch floods the frame to all ports except the port through which the frame arrived to notify the hosts of the error.
      
      Answers Explanation & Hints:

      The purpose of the CRC value in the FCS field is to determine if the frame has errors. If the frame does accept errors, then the frame is dropped by the switch.

23. Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or circulate address?

    • destination IPv4 address
    • protocol
    • TTL
    • header checksum

24. If the default gateway is configured incorrectly on the host, what is the impact on communications?

    • The host is unable to communicate on the local network.
    • The host tin can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
    • The host tin communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.
    • At that place is no impact on communications.
      
      Answers Caption & Hints:

      A default gateway is only required to communicate with devices on another network. The absence of a default gateway does not affect connectivity between devices on the same local network.

25. Why is NAT not needed in IPv6?​

    • Because IPv6 has integrated security, there is no need to hide the IPv6 addresses of internal networks.​
    • Any host or user tin can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.​
    • The problems that are induced by NAT applications are solved because the IPv6 header improves packet handling by intermediate routers.​
    • The end-to-finish connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are continued to the Internet.
      
      Answers Explanation & Hints:

      The large number of public IPv6 addresses eliminates the need for NAT. Sites from the largest enterprises to single households tin go public IPv6 network addresses. This avoids some of the NAT-induced awarding problems that are experienced by applications that crave cease-to-end connectivity.

26. What routing table entry has a next hop accost associated with a destination network?

    • directly-connected routes
    • local routes
    • remote routes
    • C and Fifty source routes
      
      Answers Caption & Hints:

      Routing tabular array entries for remote routes will have a next hop IP accost. The adjacent hop IP address is the accost of the router interface of the next device to be used to reach the destination network. Directly-connected and local routes accept no side by side hop, because they exercise not require going through another router to be reached.

27. Refer to the showroom. PC1 issues an ARP request because it needs to send a packet to PC3. In this scenario, what will happen next?

    

    CCNA1 v7 – ITNv7 – Practice Final – ITN Answers 004

    • RT1 will forrad the ARP request to PC3.
    • RT1 will send an ARP reply with its own Fa0/0 MAC address.
    • RT1 will transport an ARP reply with the PC3 MAC address.
    • SW1 will ship an ARP reply with its Fa0/1 MAC address.
    • RT1 will send an ARP reply with its own Fa0/1 MAC address.
      
      Answers Caption & Hints:

      When a network device has to communicate with a device on another network, it broadcasts an ARP asking asking for the default gateway MAC address. The default gateway (RT1) unicasts an ARP respond with the Fa0/0 MAC address.

28. Which destination address is used in an ARP request frame?

    • 0.0.0.0
    • 255.255.255.255
    • FFFF.FFFF.FFFF
    • AAAA.AAAA.AAAA
    • the physical accost of the destination host
      
      Answers Caption & Hints:

      The purpose of an ARP request is to notice the MAC address of the destination host on an Ethernet LAN. The ARP process sends a Layer 2 broadcast to all devices on the Ethernet LAN. The frame contains the IP address of the destination and the broadcast MAC address, FFFF.FFFF.FFFF. The host with the IP address that matches the IP accost in the ARP request will reply with a unicast frame that includes the MAC accost of the host. Thus the original sending host will obtain the destination IP and MAC address pair to go on the encapsulation procedure for data transmission.

29. Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?

    

    CCNA1 v7 – ITNv7 – Do Terminal – ITN Answers 006

    • The switch will discard the frame.
    • The switch volition forward the frame but to port ii.
    • The switch will frontwards the frame to all ports except port 4.
    • The switch will frontwards the frame to all ports.
    • The switch will forward the frame merely to ports 1 and iii.
      
      Answers Explanation & Hints:

      The MAC address of PC3 is not present in the MAC tabular array of the switch. Considering the switch does non know where to ship the frame that is addressed to PC3, it will forward the frame to all the switch ports, except for port iv, which is the incoming port.

30.                 Floor(config)# interface gi0/1                Floor(config-if)# description Connects to the Registrar LAN                Floor(config-if)# ip address 192.168.235.234 255.255.255.0                Flooring(config-if)# no shutdown                Floor(config-if)# interface gi0/0                Floor(config-if)# clarification Connects to the Manager LAN                Floor(config-if)# ip address 192.168.234.114 255.255.255.0                Floor(config-if)# no shutdown                Flooring(config-if)# interface s0/0/0                Floor(config-if)# description Connects to the Internet access provider                Flooring(config-if)# ip address ten.234.235.254 255.255.255.0                Floor(config-if)# no shutdown                Floor(config-if)# interface s0/0/1                Flooring(config-if)# description Connects to the Head Part WAN                Flooring(config-if)# ip address 203.0.113.three 255.255.255.0                Floor(config-if)# no shutdown                Floor(config-if)# end              

    Refer to the showroom. A network administrator is connecting a new host to the Registrar LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

    • 192.168.235.234
    • 192.168.235.1
    • ten.234.235.254
    • 203.0.113.3
    • 192.168.234.114

31. Match the command with the device mode at which the control is entered. (Not all options are used.)

    

    CCNA1 v7 – ITNv7 – Practice Last – ITN Answers 03

    Answers Caption & Hints:

    The enable command is entered in R1> way. The login control is entered in R1(config-line)# manner. The copy running-config startup-config command is entered in R1# manner. The ip address 192.168.4.iv 255.255.255.0 control is entered in R1(config-if)# mode. The service countersign-encryption command is entered in global configuration way.

32. A router boots and enters setup mode. What is the reason for this?

    • The IOS image is corrupt.
    • Cisco IOS is missing from flash memory.
    • The configuration file is missing from NVRAM.
    • The Postal service process has detected hardware failure.
      
      Answers Explanation & Hints:

      If a router cannot locate the startup-config file in NVRAM, it will enter setup mode to allow the configuration to be entered from the panel device.

33. What type of accost is 198.133.219.162?

    • public
    • link-local
    • loopback
    • multicast

34. Given network 172.xviii.109.0, which subnet mask would be used if half-dozen host $.25 were available?

    • 255.255.255.192
    • 255.255.255.252
    • 255.255.224.0
    • 255.255.255.248
    • 255.255.192.0
      
      Answers Explanation & Hints:

      With an IPv4 network, the subnet mask is determined by the hosts bits that are required:
      xi host bits required – 255.255.248.0
      10 host $.25 required – 255.255.252.0
      9 host bits required – 255.255.254.0
      8 host bits required – 255.255.255.0
      vii host bits required – 255.255.255.128
      6 host bits required – 255.255.255.192
      5 host bits required – 255.255.255.224
      4 host bits required – 255.255.255.240
      three host bits required – 255.255.255.248
      two host bits required – 255.255.255.252

35. Iii devices are on three dissimilar subnets. Match the network accost and the circulate address with each subnet where these devices are located. (Non all options are used.)

    Device ane: IP accost 192.168.10.77/28 on subnet 1

    Device 2: IP address192.168.10.17/xxx on subnet ii

    Device 3: IP accost 192.168.10.35/29 on subnet 3

    

    CCNA1 v7 – ITNv7 – Practice Final – ITN Answers 04

    Answers Explanation & Hints:

    To calculate whatsoever of these addresses, write the device IP accost in binary. Describe a line showing where the subnet mask 1s stop. For example, with Device 1, the concluding octet (77) is 01001101. The line would be drawn betwixt the 0100 and the 1101 considering the subnet mask is /28. Change all the bits to the right of the line to 0s to determine the network number (01000000 or 64). Alter all the $.25 to the correct of the line to 1s to determine the circulate accost (01001111 or 79).

36. What does the IP accost 192.168.i.xv/29 represent?

    • subnetwork address
    • multicast address
    • unicast accost
    • broadcast accost
      
      Answers Explanation & Hints:

      A broadcast accost is the concluding address of any given network. This address cannot be assigned to a host, and information technology is used to communicate with all hosts on that network.

37. What type of IPv6 address is represented by ::one/128?

    • loopback
    • unspecified
    • global unicast
    • EUI-64 generated link-local

38. Which is the compressed format of the IPv6 accost fe80:0000:0000:0000:0220:0b3f:f0e0:0029?

    • fe80::220:b3f:f0e0:29
    • fe80:9ea:0:2200::fe0:290
    • fe80:9ea0::2020:0:bf:e0:9290
    • fe80:9ea0::2020::bf:e0:9290

39. Refer to the exhibit. A user issues the command netstat –r on a workstation. Which IPv6 accost is one of the link-local addresses of the workstation?

    

    CCNA1 v7 – ITNv7 – Exercise Last – ITN Answers 005

    • ::1/128
    • fe80::30d0:115:3f57:fe4c/128
    • fe80::/64
    • 2001:0:9d38:6ab8:30d0:115:3f57:fe4c/128
      
      Answers Caption & Hints:

      In the IPv6 address scheme, the network of fe80::/10 is reserved for link-local addresses. The address fe80::/64 is a network address that indicates, in this workstation, fe80::/64 is actually used for link-local addresses. Thus the address fe80::30d0:115:3f57:fe4c/128 is a valid IPv6 link-local accost.

40. Network information:
    * local router LAN interface: 172.19.29.254 / fe80:65ab:dcc1::10
    * local router WAN interface: 198.133.219.33 / 2001:db8:FACE:39::ten
    * remote server: 192.135.250.103

    What task might a user be trying to achieve by using the ping 2001:db8:FACE:39::10 control?

    • verifying that at that place is connectivity to the internet
    • verifying that at that place is connectivity inside the local network
    • creating a network performance benchmark to a server on the company intranet
    • determining the path to reach the remote server

41. A network technician types the command ping 127.0.0.1 at the command prompt on a computer. What is the technician trying to attain?

    • checking the IP address on the network card
    • testing the integrity of the TCP/IP stack on the local car
    • pinging a host computer that has the IP accost 127.0.0.1 on the network
    • tracing the path to a host computer on the network and the network has the IP address 127.0.0.1
      
      Answers Explanation & Hints:

      127.0.0.ane is an address reserved by TCP/IP to examination the NIC, drivers and TCP/IP implementation of the device.

42. Which two ICMP letters are used by both IPv4 and IPv6 protocols? (Cull two.)​

    • router solicitation
    • route redirection
    • neighbour solicitation
    • protocol unreachable
    • router advertisement
      
      Answers Explanation & Hints:

      The ICMP messages mutual to both ICMPv4 and ICMPv6 include: host confirmation, destination (net, host, protocol, port) or service unreachable, time exceeded, and route redirection. Router solicitation, neighbor solicitation, and router advertisement are new protocols implemented in ICMPv6.

43. To which TCP port grouping does the port 414 belong?

    • registered
    • well-known
    • individual or dynamic
    • public
      
      Answers Explanation & Hints:

      There are different types of TCP and UDP port numbers:Well-known ports – numbers 0 to 1023
      Registered ports – numbers 1024 to 49151
      Dynamic or private ports – numbers 49152 to 65535

44. A customer packet is received by a server. The bundle has a destination port number of 22. What service is the client requesting?

    • SSH
    • DHCP
    • DNS
    • TFTP

45. Refer to the showroom. What does the value of the window size specify?

    

    CCNA1 v7 – ITNv7 – Practice Terminal – ITN Answers 001

    • the amount of data that can be sent at once
    • the total number of $.25 received during this TCP session
    • the corporeality of data that tin be sent before an acknowledgment is required
    • a random number that is used in establishing a connexion with the 3-way handshake
      
      Answers Explanation & Hints:

      The window size specifies the corporeality of information that can exist sent before an acknowledgment is received from the receiver. This value specifies the highest number of bytes, not the required number of bytes.

46. What service is provided by POP3?

    • Retrieves email from the server by downloading the electronic mail to the local mail application of the client.
    • Allows remote admission to network devices and servers.
    • Uses encryption to provide secure remote access to network devices and servers.
    • An application that allows real-time chatting among remote users.

47. 2 students are working on a network design project. One student is doing the drawing, while the other pupil is writing the proposal. The drawing is finished and the student wants to share the folder that contains the drawing so that the other student can access the file and copy it to a USB drive. Which networking model is being used?

    • peer-to-peer
    • client-based
    • chief-slave
    • signal-to-bespeak
      
      Answers Explanation & Hints:

      In a peer-to-peer (P2P) networking model, data is exchanged betwixt ii network devices without the employ of a defended server. ​​

48. Which command is used to manually query a DNS server to resolve a specific host name?

    • nslookup
    • ipconfig /displaydns
    • tracert
    • net
      
      Answers Explanation & Hints:

      The nslookup command was created to permit a user to manually query a DNS server to resolve a given host name. The ipconfig /displaydns command just displays previously resolved DNS entries. The tracert command was created to examine the path that packets take as they cantankerous a network and can resolve a hostname past automatically querying a DNS server. The net command is used to manage network computers, servers, printers, and network drives.

49. The employees and residents of Ciscoville cannot admission the Net or any remote spider web-based services. IT workers quickly determine that the city firewall is being flooded with so much traffic that a breakdown of connectivity to the Net is occurring. Which type of attack is being launched at Ciscoville?

    • Trojan equus caballus
    • reconnaissance
    • DoS
    • access
      
      Answers Explanation & Hints:

      A DoS (denial of service) attack prevents authorized users from using one or more than computing resource.

50. A network administrator is issuing the login cake-for 180 attempts two inside thirty control on a router. Which threat is the network administrator trying to prevent?

    • a user who is trying to judge a password to access the router
    • a worm that is attempting to access another part of the network
    • an unidentified individual who is trying to access the network equipment room
    • a device that is trying to inspect the traffic on a link
      
      Answers Explanation & Hints:

      The login block-for 180 attempts ii inside 30 command will cause the device to block hallmark after 2 unsuccessful attempts inside 30 seconds for a duration of 180 seconds. A device inspecting the traffic on a link has nix to do with the router. The router configuration cannot prevent unauthorized access to the equipment room. A worm would non attempt to access the router to propagate to some other office of the network.

51. Which statement describes the characteristics of packet-filtering and stateful firewalls as they relate to the OSI model?

    • Both stateful and packet-filtering firewalls tin can filter at the application layer.
    • A stateful firewall tin filter application layer information, whereas a packet-filtering firewall cannot filter beyond the network layer.
    • A packet-filtering firewall typically can filter up to the transport layer, whereas a stateful firewall can filter upwardly to the session layer.
    • A packet-filtering firewall uses session layer information to rails the state of a connection, whereas a stateful firewall uses application layer information to track the state of a connection.
      
      Answers Explanation & Hints:

      Packet filtering firewalls can always filter Layer 3 content and sometimes TCP and UDP-based content. Stateful firewalls monitor connections and thus have to exist able to support up to the session layer of the OSI model.

52. What are 2 means to protect a calculator from malware? (Choose two.)

    • Employ antivirus software.
    • Empty the browser cache.
    • Keep software up to date.
    • Delete unused software.
    • Defragment the hard disk drive.
      
      Answers Explanation & Hints:

      At a minimum, a estimator should use antivirus software and have all software upward to date to defend against malware.

53. Only employees continued to IPv6 interfaces are having difficulty connecting to remote networks. The analyst wants to verify that IPv6 routing has been enabled. What is the all-time control to use to accomplish the task?

    • testify running-config
    • show interfaces
    • copy running-config startup-config
    • show ip nat translations

54. Which ii commands could be used to cheque if DNS name resolution is working properly on a Windows PC? (Choose two.)

    • nslookup cisco.com
    • net cisco.com
    • ping cisco.com
    • nbtstat cisco.com
    • ipconfig /flushdns
      
      Answers Caption & Hints:

      The ping command tests the connectedness between 2 hosts. When ping uses a host domain name to test the connection, the resolver on the PC will offset perform the name resolution to query the DNS server for the IP accost of the host. If the ping control is unable to resolve the domain name to an IP accost, an error will effect.

      Nslookup is a tool for testing and troubleshooting DNS servers.

55. A small advertising company has a web server that provides disquisitional business organisation service. The company connects to the Internet through a leased line service to an ISP. Which arroyo best provides toll constructive redundancy for the Internet connection?

    • Add a second NIC to the web server.
    • Add together some other web server to prepare failover support.
    • Add a connection to the Cyberspace via a DSL line to another ISP.
    • Add multiple connections betwixt the switches and the border router.
      
      Answers Explanation & Hints:

      With a separate DSL connexion to another Internet access provider, the visitor will have a back-up solution for the Net connection, in instance the leased line connexion fails. The other options provide other aspects of redundancy, but not the Internet connection. The options of adding a second NIC and adding multiple connections betwixt the switches and the edge router will provide redundancy in instance one NIC fails or one connection betwixt the switches and the border router fails. The pick of calculation another web server provides back-up if the main web server fails.

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Source: https://ccnav7.net/ccna1-v7/ccna1-v7-itnv7-practice-final-itn-answers/