Networking Concepts MCQ Quiz

Wired and wireless LANs both operate at the Network and Data Link layers (Layer 2 and 3) of the TCP/IP model.

A checksum can only detect errors, it cannot correct them. It calculates a value based on data, and any discrepancy in the calculated vs. received value indicates an error.

A soft handoff allows a mobile device to communicate with two base stations simultaneously, ensuring continuous connectivity during transitions between cells.

The performance management system within a network monitors and controls the network's efficiency, ensuring smooth data flow and minimal bottlenecks.

Polling is a random-access protocol where a central entity (master) sequentially requests data from individual devices (slaves) on the network.

The IP address ranges 10.0.0.0 - 10.255.255.255, 172.16.0.0 - 172.31.255.255, and 192.168.0.0 - 192.168.255.255 are reserved for internal use behind routers, providing a safe and private internal network.

Effective and efficient network design prioritizes performance (speed and efficiency), reliability (consistent function), and security (protection from unauthorized access).

RIP (Routing Information Protocol) uses UDP (User Datagram Protocol) for communication. It relies on UDP's simplicity and speed for efficiently exchanging routing information between routers.

Coaxial cable was used end-to-end in original cable TV networks for its ability to carry signals over long distances with minimal interference.

Transmission delay is calculated by dividing packet length by the transmission rate. It represents the time taken to send a packet through a network.

In Cyclic Redundancy Checking (CRC), the remainder after dividing data by a specific divisor is used to form the check bits. This remainder helps detect errors in the transmitted data.

Distance-vector routing relies on distance (number of hops) to calculate the least-cost route between any two nodes. Each router maintains a vector of distances to other routers in the network.

When IPv6 becomes the dominant internet protocol, but some sites still use IPv4, tunneling and header translation strategies are used to ensure communication between both protocols.

Routers, during packet forwarding, are not allowed to fragment the packet, decapsulate it, or change its source/destination address. These operations are handled by other network devices.

A LAN is defined by its geometric size, meaning the physical area it covers. The number of devices on a LAN is not the primary defining factor.

In multipoint communication, a single transmission medium is shared by multiple devices, requiring protocols to manage access and avoid collisions.

The security management system is responsible for enforcing network access policies, controlling who can get access to the network and what they can do.

A packet-filter firewall operates either at the Network layer (Layer 3) or the Transport layer (Layer 4) to control and filter network traffic based on rules.

A hard handoff occurs when a mobile device switches its connection from one base station to another, resulting in a brief interruption in service.

In Manchester and differential Manchester encoding, the signal transition in the middle of a bit is used for synchronization purposes, ensuring the receiver stays aligned with the sender's timing.

Address aggregation, also known as route summarization, was designed to address the issue of growing routing table entries in networks using classless addressing, where each network can have a unique size.

The Internet Protocol (IP) is an unreliable protocol. It does not guarantee delivery of packets or ensure their order of arrival, making it connectionless.