Nokia Nokia 4A0-100 Exam Questions

Question 6 of 66

What kind of information can a Dynamic Host Configuration Protocol (DHCP) client receive?

Details of the configuration settings of each router on the network.

A list of other DHCP clients.

IP addresses and their lease times.

Server time information

Correct Answer: C

A Dynamic Host Configuration Protocol (DHCP) client can receive IP addresses and their lease times from the DHCP server. This is because the primary function of a DHCP server is to dynamically allocate IP addresses to clients on a network, along with other optional parameters such as the subnet mask, default gateway, and DNS server information.

Question 7 of 66

Choose two true statements that characterize Link State Routing

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

Routers flood link information throughout the entire area.

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

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

Correct Answer: B, C

Link State Routing involves routers flooding link state information throughout the entire area, allowing all routers to have a comprehensive view of the network topology. This detailed knowledge aids in quickly converging to the optimal routing configuration shortly after a topology change, usually within several seconds. Therefore, the correct statements are that routers flood link information throughout the entire area and that the network converges quickly after a topology change.

Question 8 of 66

Which statement accurately explains the purpose of the TCP protocol and what it provides?

The primary purpose of TCP is to provide reliable communications between application services.

The primary purpose of TCP is to provide unreliable communications between application services

The primary purpose of TCP is to provide IP routing between application services.

The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTML.

Correct Answer: A

The primary purpose of TCP is to provide reliable communications between application services. TCP (Transmission Control Protocol) ensures that data is sent and received in the same order and without errors, by establishing a connection and maintaining it until all data has been successfully exchanged.

Question 9 of 66

Which of the following is the best description of well known ports?

Well known ports apply to routers only and are used for communication and control traffic. Well known port numbers are assigned by IANA and can have any value.

Well known ports are used by TCP and UDP. Well known port numbers range from 1024 to 65535 and are assigned by IANA.

Well known port numbers are used by both TCP and UDP. Well known port numbers range from 1 to 1023 and are assigned by IANA.

Well known ports numbers are used by TCP only. Well known port numbers are assigned by IANA and can have any value.

Correct Answer: C

Well known port numbers are used by both TCP and UDP and are assigned by the Internet Assigned Numbers Authority (IANA). These ports range from 1 to 1023, and they are reserved for commonly used services and applications such as HTTP, FTP, and SSH.

Question 10 of 66

Which organization first considered cross-platform networking support to be a necessity?

IBM.

US Military.

Nokia.

NASA.

Bell Labs

Correct Answer: E

Bell Labs is recognized for its pioneering work in networking technologies, including the development of Unix. The Unix operating system was designed with portability and networking in mind, enabling cross-platform networking. IBM, the US Military, Nokia, and NASA have also contributed significantly to networking technologies, but Bell Labs was pivotal in considering cross-platform networking as an essential feature.