CCNA Quiz Online Test Mcqs

Test Instructions
Test Name	:	CCNA MCQs
Subject	:	Computer General
Test Type	:	Mcqs
Total Question	:	25
Total Marks	:	50
Total Time	:	20 Minutes

This quiz includes mcq’s questions about the CCNA. This quiz will help you test and improve your knowledge about it will ease as it includes all the important questions related to it. You will be given multiple options for each question and need to select the correct one.

CCNA Quiz Online Test Mcqs Questions with Answers

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Question 1 of 25

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1. What two events will cause a link state router to send LSPs to all neighbors?

Immediately after the DUAL FSM has built the topology database

Upon initial startup of router or routing protocol

30 second timer expires

Immediately after the Bellman-Ford algorithm has run

Whenever the network topology changes

Question 1 of 25

Question 2 of 25

2. What are two advantages of using a link-state routing protocol instead of a distance vector routing protocol?

The topology database eliminates the need for a routing table.

Each router independently determines the route to each network.

After the inital LSP flooding, they generally require less bandwidth to communicate changes in a topology

Link-state protocols require less router processor power than distance vector protocols

Question 2 of 25

Question 3 of 25

3. Which algorithm is run by link-state routing protocols to calculate the shortest path to destination networks?

DUAL

Bellman-Ford

Dijkstra

Diffie-Hellman

Question 3 of 25

Question 4 of 25

4. What two statements correctly describe the link state routing process?

LSPs use the reserved multicast address of 224.0.0.10 to reach neighbors

All routers in the area have link state databases

Each router in the area floods LSPs to all neighbors

Routing loops are prevented by running the Diffusing Update Algorithm (DUAL)

Question 4 of 25

Question 5 of 25

5. How many bytes is an Ethernet address?

Question 5 of 25

Question 6 of 25

6. Which routers will router D receive hello packets?

A and E

C only

A, B, C, and E

B and C

Question 6 of 25

Question 7 of 25

7. Which protocol works at the Internet layer and provides a connection service between hosts?

ARP

UDP

TCP

Question 7 of 25

Question 8 of 25

8. What range of addresses can be used in the first octet of a Class C address?

1-127

129-192

203-234

192-223

Question 8 of 25

Question 9 of 25

9. Which database or table must be identical on all link-state routers within an area in order to construct an accurate SPF tree?

Routing table

Adjacency table

Link-state database

Neighbor table

Question 9 of 25

Question 10 of 25

10. Which protocol working at the Transport layer provides a connectionless service between hosts?

TCP

ARP

UDP

Question 10 of 25

Question 11 of 25

11. If a host broadcasts a frame that includes a source and destination hardware address, and its purpose is to assign IP addresses to itself, which protocol at the Network layer does the host use?

RARP

IPX

ARPA

TCP

ICMP

Question 11 of 25

Question 12 of 25

12. Refer to the exhibit. What does JAX do with link-state packets from ORL?

Sends out its updated routing table to both ORL and BOS routers

Only adds it to the local routing table and performs no other actions

Queries BOS to see if it has a better route

Sends out the individual link-state packets out the interface connected to BOS

Question 12 of 25

Question 13 of 25

13. Why is it difficult for routing loops to occur in networks that use link-state routing?

Each router builds a simple view of the network based on hop count

Routers use hold-down timers to prevent routing loops

Routers flood the network with LSAs to discover routing loops

Each router builds a complete and synchronized view of the network

Question 13 of 25

Question 14 of 25

14. What protocol is used to find the hardware address of a local device?

ARP

ICMP

BootP

RARP

Question 14 of 25

Question 15 of 25

15. What is the final step in the link state routing process?

SPF computes best path to each destination network

LSPs are flooded to all neighbors to converge the network

DUAL algorithm is run to find best path to destination networks

Successors are placed into the routing table

Question 15 of 25

Question 16 of 25

16. If a router interface is congested, which protocol in the IP suite is used to tell neighbor routers?

TCP

ICMP

ARP

RARP

Question 16 of 25

Question 17 of 25

17. What speeds up convergence in a network using link-state routing?

Updates sent only to directly connected neighbors

Updates sent at regular intervals

Updates that include complete routing tables

Updates triggered by network changes

Question 17 of 25

Question 18 of 25

18. What feature do modern link-state protocols provide to minimize processing and memory requirements?

Strict split horizon rules to reduce routing table entries

Assigning lower process priorities to route calculations

Using update timers to restrict routing updates

Splitting routing topologies into smaller areas

Question 18 of 25

Question 19 of 25

19. What range of addresses can be used in the first octet of a Class B network address?

128-190

1-127

1-126

129-192

128-191

Question 19 of 25

Question 20 of 25

20. What action does a link-state router take immediately upon receipt of an LSP from a neighboring router?

Floods the LSP to neighbors

Calculates the SPF algorithm

Computes the best path to the destination network

Runs the Bellman-Ford algorithm

Question 20 of 25

Question 21 of 25

21. Refer to the exhibit. Router B receives a packet with a destination address of 10.16.1.97. What will router B do?

Use the default route

Drop the packet

Forward the packet via the route to 10.16.1.64

Forward the packet via the route to 10.16.1.0

Question 21 of 25

Question 22 of 25

22. When are link-state packets sent to neighbors?

Every 30 seconds

After the holddown time expires

Every 180 seconds

When a link goes up or down

Question 22 of 25

Question 23 of 25

23. Which protocol works at the Transport layer and provides virtual circuits between hosts?

TCP

ARP

UDP

Question 23 of 25

Question 24 of 25

24. What is the valid host range the IP address 172.16.10.22 255.255.255.240 is a part of?

172.16.10.1 through 172.16.10.255

172.16.10.17 through 172.16.10.31

172.16.10.17 through 172.16.10.30

172.16.10.16 through 172.16.10.23

172.16.10.20 through 172.16.10.22

Question 24 of 25

Question 25 of 25

25. Refer to the exhibit. What kind of information would be seen in an LSP sent from router JAX to router ATL?

Hop count

A list of all the routing protocols in use

Uptime of the route

Cost of the link

Question 25 of 25

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2016-08-29

Zubair Asghar

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CCNA Quiz Online Test Mcqs

Test Instructions