Module 8-Network Layer

Where will a frame be directed if the destination IP address is on a remote network?

• To the MAC address of the default gateway.

• To the destination host MAC address.

• To the destination remote switch.

• To the MAC address of the local switch.

Which of the statements regarding the IP protocol is true?

• IP encapsulation is modified based on different network media types.

• IP relies on Layer 2 protocols for transmission error control.

• MAC addresses are used during the IP packet encapsulation.

• IP requires upper layers such as the Transport layer to resend missing frames.

What function does the IPv4 127.0.0.1 or ::1 IPv6 loopback address provide?

• To test if the device has end-to-end connectivity.

• To test that a device has a proper network IP address.

• To test that the device has a properly configured default gateway.

• To test that the TCP/IP layer 3 is operational.

What are two services provided by the OSI network layer?

• Performs error and collision detection.

• Performs error detection and places frames onto the media.

• Encapsulates the IP addresses and routes frames towards the destination network.

• Determines the correct port number and application.

Which of the following are characteristics of the IP protocol?

• It is media dependant and connection-oriented.

• It performs error detection and packet re-ordering.

• It provides security and packet tracking.

• It is connectionless and best-effort.

Why is NAT not needed in IPv6?

• NAT is not necessary because IPv6 supports end to end delivery of a packet with the same IP address.​

• NAT is not necessary because security is inherently built into IPv6.

• IPv6 header improves packet handling with fewer fields therefore there is no need for NAT.

• Multiple Ipv6 addresses can be assigned to adapters increasing the number of routes eliminating the need for NAT.

Which IPv4 packet header field would contain a unicast, multicast, or broadcast address?

• Protocol

• Header checksum

• Time to Live (TTL)

• Destination IPv4 address

What IPv4 header field identifies the upper-layer protocol (TCP, UDP, ICMP) contained within the packet?

• Version

• Protocol

• Differentiated Services

• Traffic Class

Which header field prevents an IPv6 packet from endlessly traversing a network without being delivered?

• Protocol

• Version

• Hop limit

• Traffic Class

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

• Differentiated Services

• Hop Limit

• Next Header

• Version