Tcp Ip Protocol — Test 1

Correct Answer: C. C. DHCP
Explanation: Dynamic Host Configuration Protocol (DHCP) is used to provide IP information to hosts on your network. DHCP can provide a lot of information, but the most common is the IP address, subnet mask, default gateway, and DNS information.

Correct Answer: C. C. Internet
Explanation: The four layers of the DoD model are Application/Process, Host-to-Host, Internet, and Network Access. The Internet layer is equivalent to the Network layer of the OSI model.

Correct Answer: D. D. DNS
Explanation: DNS and some other services work on both TCP and the UDP protocols. DNS uses TCP for zone exchanges between servers and UDP when a client is trying to resolve a hostname to an IP address.

Correct Answer: B. B. 16bit long
Explanation: TCP and UDP port numbers are 16 bits in length. So, valid port numbers can theoretically take on values from 0 to 65,535. These values are divided into ranges for different purposes, with certain ports reserved for particular uses.

Correct Answer: B. B. Application layer
Explanation: TCP/IP network model is a hierarchical protocol made up of interactive modules, each of which provides a specific functionality; however, the modules are not necessarily interdependent. It is equivalent to combined session, presentation and application layer.

Correct Answer: D. D. Four
Explanation: Four levels of addresses are used in the internet employing the TCP/IP protocols. They are physical (link) addresses, logical (IP) addresses, port addresses, and specific addresses.

Correct Answer: B. B. Application layer
Explanation: In open systems, a virtual terminal (VT) is an application service. It allows host terminals on a multi-user network to interact with other hosts regardless of terminal type and characteristics.

Correct Answer: A. A. Arpanet
Explanation: In 1983, TCP/IP protocols replaced NCP (Network Control Program) as the ARPANET’s principal protocol. And ARPANET then became one component of the early Internet. The starting point for host-to-host communication on the ARPANET in 1969 was the 1822 protocol, which defined the transmission of messages to an IMP.

Correct Answer: A. A. Router
Explanation: A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. It supports different network layer transmission standards. Each network interface is used to enable data packets to be forwarded from one transmission system to another.

Correct Answer: D. D. Repeater
Explanation: A repeater connects two segments of your network cable. It retimes and regenerates the signals to proper amplitudes and sends them to the other segments. Repeaters work only at the physical layer of the OSI network model.