Nokia Nokia Certifications 4A0-100 Questions & Answers

• Question 151:

  Which of the following information can be seen within the FILE context of the SR 7x50? (Choose 2)

  A. File sizes

  B. Port statistics

  C. Log-id 100 files

  D. TiMOS image files

  Correct Answer: AD

• Question 152:

  Which of the following are functions of VLANs? (Choose 2)

  A. VLANs can group ports on multiple switches into unified broadcast domains

  B. VLANs allow multiple Ethernet switches to be connected in a single collision domain

  C. VLANs can separate ports on the same switch into different broadcast domains

  D. VLANs can group ports on the same switch into different collision domains

  Correct Answer: AC

• Question 153:

  Which of the following is a characteristic of a static route?

  A. Responds in real time to network failures.

  B. Can only be used for routing within an autonomous system.

  C. Uses a hop-count metric to determine the best route to a network.

  D. Explicitly defines the next-hop based on operator input.

  Correct Answer: D

• Question 154:

  Which of the following describes a static default route?

  A. A routing entry, included in the RIB by default, that forwards packets with an unknown destination to the CPM for inspection.

  B. A manual entry used when the destination address of a network is not specifically listed in the routing table.

  C. A manual entry that matches a specific /32 host address using the least cost to the destination.

  D. A default entry in the FIB used when forwarding multicast and broadcast packets.

  Correct Answer: B

• Question 155:

  Which of the following statements best characterize Distance Vector Routing? (Choose 2)

  A. Routers periodically send a copy of their routing table to their neighbors.

  B. Routers flood link information throughout the entire area.

  C. Network converges quickly (within several seconds) after a topology change.

  D. Routers do not have precise knowledge of the entire network topology.

  Correct Answer: AD

• Question 156:

  Which of the following statements is TRUE regarding IP addressing?

  A. Classful IP addressing provides hierarchy based on variable subnet masks.

  B. Classless IP addresses provide hierarchy based on a variable length subnet mask.

  C. Classless IP addresses provide hierarchy based on fixed subnet masks of /24. /16 and/8.

  D. IP addresses provide hierarchy based on the country code and regional identifier.

  Correct Answer: B

• Question 157:

  Which of the following statements regarding TCP is TRUE?

  A. Sequence numbers are used to ensure that the data received is offered to the application in the correct order.

  B. The SYN flag is used to identify congestion in the network.

  C. The NACK flag is set on confirmation segments to acknowledge FCS errors.

  D. The window size is transmitted in all TCP segments to communicate MTU limitations of lower layer protocols to upper layer applications.

  Correct Answer: A

• Question 158:

  Which of the following are important to consider when designing IPv4 subnets? (Choose 3)

  A. The number of subnetworks currently required.

  B. The version of the Ethernet used by each segment.

  C. Future network growth requirements.

  D. The number of hosts each subnetwork will support.

  E. The class of the IP address assigned to an organization.

  Correct Answer: ACD

• Question 159:

  Which bit pattern identifies the network address in the subnet mask?

  A. A string of consecutive 1's.

  B. A string of consecutive 0's.

  C. A string of alternating 10's.

  D. The network address is determined by masking the source address with a port's if Index binary representation.

  Correct Answer: A

• Question 160:

  What are the tasks of a Routing Table Manager (RTM)? (Choose 2)

  A. To select the best route from among multiple routing protocols.

  B. To select the best route using the metric as criteria.

  C. To send its best route to all its directly connected neighbors.

  D. To install its best route in the routing table.

  Correct Answer: AD