Nokia Nokia Certifications 4A0-100 Questions & Answers

• Question 51:

  What is the preference value in the routing table used for?

  A. To select from routes with different next-hops.

  B. To select from routes with different costs.

  C. To select from routes learned from different routing protocols.

  D. To select from routes with different prefixes.

  Correct Answer: C

• Question 52:

  Which of the following about the displayed IP filter is TRUE?

  

  A. UDP (protocol 17) packets with destination IP address 1.2.3.0/24 and destination port number between 200 and 300 are forwarded.

  B. UDP (protocol 17) packets with destination IP address 1.2.3.0/24 and destination port number between 200 and 300 are dropped.

  C. UDP (protocol 17) packets with destination IP address 1.2.3.0/24 or destination port numbers 200 or 300 are dropped.

  D. UDP (protocol 17) packets with destination IP address 1.2.3.0/24 and source port number between 200 and 300 are dropped.

  Correct Answer: A

• Question 53:

  

  Router R5 receives four route updates for the same prefix 10.10.10.1/32. Which of the four routes will be installed in R5's routing table?

  A. Route learned from router R1.

  B. Route learned from router R2.

  C. Route learned from router R3.

  D. Route learned from router R4.

  Correct Answer: B

• Question 54:

  Which of the following statements about the OSPF HELLO message is TRUE?

  A. It is used to maintain adjacency between neighbors.

  B. It is used to request link state updates from neighbors.

  C. It is used to deliver link state updates to neighbors.

  D. It is used to confirm delivery of updates between neighbors.

  Correct Answer: A

• Question 55:

  What is the next-hop for network 172.16.2.0/24 installed in router 1's routing table?

  

  A. 10.10.10.0

  B. 10.10.10.1

  C. 10.10.10.2

  D. 10.10.10.3

  Correct Answer: C

• Question 56:

  Which of the following routing protocols cannot be used between routers R2 and R4?

  

  A. Static Routing

  B. IS-IS

  C. OSPF

  D. iBGP

  E. eBGP

  Correct Answer: E

• Question 57:

  Which of the following statements about IP filters on a Nokia 7750 SR is FALSE?

  A. IP filters can be applied on inbound traffic, outbound traffic, or both.

  B. IP filters can be created to filter based on IP and MAC addressing.

  C. By default, no IP filter is applied to an interface.

  D. The default action of an IP filter is to forward packets.

  Correct Answer: D

• Question 58:

  What is the next-hop address used on router R1 to configure a static route to the network on CR1?

  

  A. 10.2.3.2

  B. 10.1.1.1

  C. 10.2.3.1

  D. 192.168.2.0

  Correct Answer: A

• Question 59:

  What type of BGP sessions does router R2 need to establish in order to reach network 192.168.5.0/27?

  

  A. An iBGP peering session with router R5, and an eBGP peering session with router R4

  B. iBGP peering sessions with routers R3 and R4

  C. An eBGP peering session with router R4

  D. An iBGP peering session with router R5

  Correct Answer: B

• Question 60:

  Which of the following protocols is used to exchange routes between routers R1 and R2, and between routers R4 and R5?

  

  A. RIPv2

  B. IS-IS

  C. OSPF

  D. BGP

  Correct Answer: D