Network Fundamentals-Network Layer

Which of the following statements describes characteristics of the IP protocol?

• Operates without a dedicated end-to-end connection and uses best effort in delivering packets.

• Detects and retransmits packets if errors occur.

• Re-assembles out of order packets into the correct order at the receiver end.

• Guarantees delivery of packets to the destination network.

When a connectionless IP protocol is in use in the OSI model, how are dropped packets detected and retransmitted?

• Connectionless acknowledgements are used to request retransmission.

• A Transport layer connection-oriented protocols keep track of the data received and can request retransmission from the sending host.

• Network layer IP protocols manage the communication sessions if connection-oriented transport services are not available.

• The best-effort delivery process guarantees that all packets that are sent are received.

Which IPv4 header field identifies the upper layer protocol carried in the packet?

• Protocol

• Identification

• Version

• Differentiated Services

Which field in the IPv4 header is used to determine the priority of each packet when setting precedence of one type of data over another?

• Time-to-Live

• Sequence Number

• Acknowledgment Number

• Differentiated Services

What statement describes an advantage that the IPv6 simplified header offers over IPv4?

• IPv6 has a smaller-sized IP header.

• Checksums in the trailer have been enhanced in IPv6.

• Source and destination IP addresses are smaller in IPv6.

• IPv6 provides end to end connectivity and eliminates the need for NAT.

What type of route is indicated by the routing code C in an IPv4 routing table on a Cisco router?

• Static route

• Default route

• Directly connected route

• Dynamic route that is learned through EIGRP

What type of route is manually configured in a routing table, includes the destination network along with either the exit interface or a next hop address to direct traffic towards the destination network?

• Directly-connected routes

• Local routes

• Static routes

• Dynamic routes

Refer to the exhibit. R1 receives a packet destined for the IP address 192.168.2.10. Out which interface will R1 forward the packet?

• FastEthernet0/0

• FastEthernet0/1

• Serial0/0/0

• Serial0/0/1

Refer to the exhibit.Which route from the PC1 routing table will be used to reach PC2?

• Network destination 0.0.0.0

• Network destination 127.0.0.1

• Network destination 192.168.10.0

• Network destination 192.168.10.10

Which field in the IPv6 header is used to determine the priority of each packet when setting the precedence of one type of data over another?

• Version

• Next Header

• Traffic Class

• Hop Limit