Informative Quiz On CCNA 3 Final Exam

44 Questions | By Man04 | Updated: Mar 21, 2022 | Attempts: 221

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An informative quiz on CCNA 3 exam below is perfect for anyone who needs help in passing the finals. The quiz below will do just that and guarantee you have that certification when you finish the course. Give it a try and share with your fellow classmates. All the best!

Questions and Answers

1.

Refer to the exhibit. The network administrator needs to setup Switch1 for remote access from HostA. The show ip interface brief is issued on Router1 and the show interfaces trunk command is issued on the Switch1 to verify the current status. The administrator applies the additional configuration shown in the exhibit to Switch1. However, the telnet from HostA fails. What additional commands need to be appliedto the switch?
- A.
  
  Switch(config)# interface vlan 1 Switch(config-if)# ip address 10.1.1.250 255.255.255.0 Switch(config-if)# no shutdown Switch(config-if)# ip default-gateway 10.1.10.254
- B.
  
  Switch(config)# interface vlan 1 Switch(config-if)# ip address 10.1.50.250 255.255.255.0 Switch(config-if)# no shutdown Switch(config-if)# ip default-gateway 10.1.50.254
- C.
  
  Switch(config)# interface vlan 10 Switch(config-if)# ip address 10.1.10.250 255.255.255.0 Switch(config-if)# no shutdown Switch(config-if)# ip default-gateway 10.1.10.254
- D.
  
  Switch(config)# interface vlan 10 Switch(config-if)# ip address 10.1.1.250 255.255.255.0 Switch(config-if)# no shutdown Switch(config-if)# ip default-gateway 10.1.10.254
- E.
  
  Switch(config)# interface vlan 50 Switch(config-if)# ip address 10.1.10.250 255.255.255.0 Switch(config-if)# no shutdown Switch(config-if)# ip default-gateway 10.1.10.254
2.

Refer to the exhibit. On the basis of the configuration shown, how will an Ethernet frame on port GigabitEthernet0/1 be modified?
- A.
  
  802.1Q encapsulation prepends a 4-byte tag field in front of the original Ethernet frame and recomputes the frame check sequence (FCS) on the modified frame.
- B.
  
  802.1Q encapsulation inserts a 4-byte tag field into the original Ethernet frame between the source address and type/length fields and recomputes the frame check sequence (FCS) on the modified frame.
- C.
  
  802.1Q encapsulation prepends an 802.1p field in front of the original Ethernet frame and recomputes the frame check sequence (FCS) on the modified frame
- D.
  
  802.1Q encapsulation inserts an 802.1p field into the original Ethernet frame between the source address and type/length fields and recomputes the frame check sequence (FCS) on the modified frame.
3.

What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value?
- A.
  
  All VLANs will be allowed across the trunk.
- B.
  
  Only VLAN 1 will be allowed across the trunk.
- C.
  
  Only the native VLAN will be allowed across the trunk.
- D.
  
  The switches will negotiate via VTP which VLANs to allow across the trunk.
4.

Which parameter is used to uniquely identify one wireless network from another?
- A.
  
  SSID
- B.
  
  OFDM
- C.
  
  WEP
- D.
  
  DSSS
5.

Refer to the exhibit. What is the consequence if SW1 port F0/1 is configured as an edge port?
- A.
  
  SW1 port F0/1 transitions to the learning state
- B.
  
  SW1 port F0/1 can generate a temporary loop.
- C.
  
  SW1 port F0/1 becomes a non-designated port
- D.
  
  SW1 port F0/2 no longer passes BPDUs to SW4
6.

Refer to the exhibit. What will allow a host on VLAN 40 on switch X to communicate with a host in VLAN 40 on switch Y?
- A.
  
  QoS
- B.
  
  Routing
- C.
  
  Trunking
- D.
  
  VPN
7.

Refer to the exhibit. Spanning-tree port priorities are 128 for all interfaces. The network administrator enters the spanning-tree vlan 1 root primary command on S4. Which two port results are correct? (Choose two.)
- A.
  
  S1 Gi0/1 becomes a root port.
- B.
  
  S2 Gi0/2 becomes a non-designated port.
- C.
  
  S3 Gi0/1 becomes a non-designated port
- D.
  
  S4 Gi0/1 becomes a root port.
- E.
  
  S4 Gi0/2 becomes a designated port
8.

Refer to the exhibit. Which two facts can be confirmed by this output? (Choose two
- A.
  
  This switch shows no configuration revision errors.
- B.
  
  This switch shows no configuration revision errors. This switch has established two-way communication with the neighboring device
- C.
  
  This switch will drop all VTP advertisements that come from the switches that are configured in the same VTP domain
- D.
  
  This switch will drop all VTP advertisements that come from the switches that are configured in the same VTP domain
- E.
  
  This switch will cause no disruption in the VTP domain operations if the rest of the switches in the same VTP domain have a higher configuration revision number.
9.

Refer to the exhibit. R1 is configured for traditional inter-VLAN routing. R1 can ping computer 3 but cannot ping computer 1. What is a possible cause for this failure?
- A.
  
  S1 port Fa0/11 is in the wrong VLAN.
- B.
  
  R1 does not have an active routing protocol
- C.
  
  The IP address of computer 1 is in the wrong logical network.
- D.
  
  Router interface Fa0/0 has the wrong trunk encapsulation type configured.
10.

Refer to the exhibit. Both switches are interconnected via a trunk link. Host A and host B are on the default VLAN but are not able to exchange traffic. What should be done to fix the problem?
- A.
  
  Allow all VLANs on the trunk link
- B.
  
  Remove the native VLAN from the trunk.
- C.
  
  Include a router or switch with Layer 3 capabilities.
- D.
  
  Configure the same native VLAN on both ends of the trunk
11.

Refer to the exhibit. The hosts connected to switch SW1 are not able to communicate with the hosts in the same VLANs connected to switch SW2. What should be done to fix the problem?
- A.
  
  Configure VLANs with different VLAN IDs on switch SW2.
- B.
  
  Reconfigure the trunk port on switch SW2 with static trunk configuration.
- C.
  
  Introduce a Layer 3 device or a switch with Layer 3 capability in the topology.
- D.
  
  Apply IP addresses that are in the same subnet to the interfaces used to connect SW1 and SW2.
12.

What happens when the crypto key zeroize rsa command is entered on a switch configured with the transport input ssh command on the vty lines?
- A.
  
  A new RSA key pair is created.
- B.
  
  The switch defaults to allowing Telnet connections only.
- C.
  
  The switch is no longer able to make SSH connections as an SSH client.
- D.
  
  The switch allows remote connections only after a new RSA key pair is generated
13.

Refer to the exhibit. An Ethernet switch has developed the CAM table shown. What action will the switch take when it receives the frame shown at the bottom of the exhibit?
- A.
  
  Forward the frame out all interfaces except Interface3
- B.
  
  Add station 00-00-3D-1F-11-05 to Interface2 in the forwarding table
- C.
  
  Forward the frame out Interface3
- D.
  
  Discard the frame
- E.
  
  Forward the frame out all interfaces
14.

Which two statements describe Spanning Tree Protocol? (Choose two.
- A.
  
  It eliminates Layer 2 loops in network topologies.
- B.
  
  It eliminates the need for redundant physical paths in network topologies.
- C.
  
  It can only be used in networks in which Layer 2 switching is in use.
- D.
  
  It can only be used in networks where both routers and switches are used together.
- E.
  
  It can only be used in networks where routers are installed
15.

Refer to the exhibit. A new host needs to be connected to VLAN 1. Which IP addresses should be assigned to this new host?
- A.
  
  192.168.1.11 /28
- B.
  
  192.168.1.22 /28
- C.
  
  192.168.1.33 /28
- D.
  
  192.168.1.44 /28
- E.
  
  192.168.1.55 /28
16.

Refer to the exhibit. How does SW1 manage traffic coming from Host A?
- A.
  
  SW1 drops the traffic because it is untagged
- B.
  
  SW1 leaves the traffic untagged and forwards it over the trunk.
- C.
  
  SW1 tags the traffic with the lowest VLAN ID value and forwards it over the trunk link.
- D.
  
  SW1 encapsulates the traffic with 802.1Q encapsulation and forwards it over the trunk link.
17.

Refer to the exhibit. Computer A sends a broadcast message. Which devices will see the broadcast?
- A.
  
  Computer B
- B.
  
  Computer B and Router1
- C.
  
  computer C and Router1
- D.
  
  Computer B, computer D, computer E and Router1
- E.
  
  Computer B, computer C, computer D, computer E and Router1
18.

Refer to the exhibit. The network administrator enters the configuration shown to allow both SSH and Telnet connections to the switch. The Telnet connections fail. What is the most likely cause of this problem?
- A.
  
  The SSH version number is wrong.
- B.
  
  SSH has been configured on the wrong line.
- C.
  
  Telnet and SSH cannot be configured simultaneously
- D.
  
  The transport input command is configured incorrectly.
19.

Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?
- A.
  
  Cat-A
- B.
  
  Cat-B
- C.
  
  Cat-C
- D.
  
  Cat-D
20.

Refer to the exhibit. The switches in the exhibit have VTP pruning enabled. Which VLANs will be pruned from switch SW3?
- A.
  
  VLAN 10 and VLAN 20
- B.
  
  VLAN 1, VLAN 10, and VLAN 20
- C.
  
  VLAN 1, VLAN 1002 through 1005
- D.
  
  VLAN 1, VLAN 10, VLAN 20, VLAN 1002 through 1005
21.

Refer to the exhibit. The network administrator needs to remove the east-hosts VLAN and use the switch port from that VLAN in one of the existing VLANs. What two commands should be used when completely removing VLAN 2 from S1-Central while leaving the switch and all its interfaces operational? (Choose two.)
- A.
  
  S1-Central# reload
- B.
  
  S1-Central# erase flash:
- C.
  
  S1-Central(config)# no vlan 2
- D.
  
  S1-Central# delete flash:vlan.dat
- E.
  
  S1-Central(config-if)# switchport access vlan 3
22.

Refer to the exhibit. What does "FORWARDING" mean in the command output shown?
- A.
  
  The switch is sending and receiving data frames
- B.
  
  The switch is receiving BPDUs, but not sending data frames.
- C.
  
  The switch is participating in an election process by forwarding the BPDUs it receives
- D.
  
  The switch is receiving BPDUs and populating the MAC address table, but not sending data
23.

Refer to the exhibit. Switch SW2 has been newly purchased and added to the network. What configuration should be applied to SW2 so that it participates in the same VTP domain as switch SW1, receives VLAN information from SW1, and synchronizes VLAN information?
- A.
  
  Disable VTP pruning on SW2.
- B.
  
  Configure SW2 in VTP transparent mode
- C.
  
  Configure SW2 with the VTP domain password.
- D.
  
  Configure SW2 as a VTP server with a higher revision number
24.

Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?
- A.
  
  All the VLANs were pruned from the trunk port between SW1 and SW2.
- B.
  
  SW1 and SW2 cannot be both set as VTP servers in the same VTP domain
- C.
  
  VTP configuration revision number of SW2 was higher than the configuration revision number of SW1.
- D.
  
  The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.
25.

Refer to the exhibit. A network administrator needs to implement inter-VLAN routing on a hierarchical network. On which devices should the inter-VLAN routing be configured?
- A.
  
  AS1 and AS2
- B.
  
  DS1 and DS2
- C.
  
  Gateway and CS1
- D.
  
  Gateway, CS1, DS1, and DS2