Computer Networks (Railway Science)

Total Questions: 6

1. Which of the following does not support bidirectional data transmission? [RRB NTPC CBT - II (15/06/2022) Shift 2]

Correct Answer: (b) Simplex
Solution:

Example- Keyboard and monitor. Half-duplex data transmission means that data can be transmitted in both directions on a signal carrier, but not at the same time. Example:- Walkie- Talkie. Full-duplex data transmission means that data can be transmitted in both directions on a signal carrier at the same time. Example:- Mobile Phone.

2. . In which of the following network topologies do the connected components make a closed loop ? [RRB NTPC CBT - II (17/06/2022) Shift I]

Correct Answer: (b) Ring topology
Solution:

Tree topology - Tree topology is a type of network topology in which nodes are grouped in the shape of a tree.
Star topology - It is a network topology in which each network component is physically connected to a central node such as a router, hub or switch.
Bus topology - It is a network type in which every computer and network device is connected to a single cable.

3. Which one of the following is called a super-network or meta-network? [RRB NTPC CBT - I (20/1/2021) Morning]

Correct Answer: (c) Internet
Solution:

Metropolitan area network (MAN) is a computer network that is larger than a single building local area network (LAN) but is located in a single geographic area that is smaller than a wide area network (WAN).

4. Which of the following network types is also termed a long haul network [RRB NTPC CBT - I (21/03/2021) Morning]

Correct Answer: (a) WAN
Solution:

WAN (Wide Area Network). It is a telecommunications network that extends over a large geographic area for the primary purpose of computer networking. Local area network (LAN) consists of cables, access points, switches, routers, and other components that when connected in an office building.

5. A shared network within an organization that enables all its employees to communicate with one another is called. [RRB NTPC CBT - I (26/07/2021) Morning]

Correct Answer: (d) intranet
Solution:

Extranet - It is a private network that enterprises use to provide trusted third parties -- such as suppliers, vendors, partners, customers and other businesses - secure, controlled access to business information or operations.

6. _________is the most common way of connecting computers to a network with a wired connection.

Correct Answer: (b) Ethernet
Solution:

LAN (local Area Network) - consists of a series of computers linked together to form a network in a circumscribed location. Uses : Home WiFi network and small business