Questions in: Network & Telecom

Right Answer:
Silly Window Syndrome (SWS) occurs in TCP networks when the sender and receiver have mismatched window sizes, leading to inefficient use of bandwidth. This happens when the sender is allowed to send only a small amount of data, causing delays and underutilization of the network capacity.

Right Answer:
The time frame for joining is typically within two to four weeks, depending on the candidate's notice period and company requirements.

Right Answer:
Terminal emulation is the ability of a computer program to mimic the functions of a traditional terminal. It primarily operates at the Application layer (Layer 7) of the OSI model.

Right Answer:
The minimum length of the TCP header is 20 bytes, and the maximum length is 60 bytes. For the IP datagram, the minimum length of the header is 20 bytes, and the maximum length is 60 bytes.

Right Answer:
Beaconing is a network protocol mechanism where a device periodically sends out a signal or message to indicate its presence and status to other devices in the network. This helps in maintaining network connectivity and detecting failures.

Right Answer:
A virtual channel is a logical connection within a network that allows multiple data streams to be transmitted over a single physical link, enabling efficient use of bandwidth and separation of different types of traffic.

Right Answer:
OSPF (Open Shortest Path First) is a link-state routing protocol used in IP networks to find the best path for data transmission. It operates within a single autonomous system and uses a hierarchical structure with areas to optimize routing efficiency. OSPF routers share information about their links and the state of the network, allowing them to build a complete map of the network topology and calculate the shortest path to each destination using Dijkstra's algorithm.

Right Answer:
1. Router
2. Switch
3. Hub
4. Bridge
5. Gateway
6. Access Point
7. Modem
8. Repeater
9. Firewall
10. Load Balancer

Right Answer:
A Gateway-to-Gateway protocol is a communication protocol used to facilitate the exchange of routing information between different networks or gateways, allowing them to share information about network topology and reachability. Examples include the Border Gateway Protocol (BGP).

Right Answer:
IDEA stands for International Data Encryption Algorithm.

Right Answer:
"Triple X" in networks refers to the concept of "X.25," which is a standard protocol suite for packet-switched networks. It is often associated with the three "X" components: X.21, X.25, and X.75, which are used for different aspects of network communication.

Right Answer:
Bit stuffing is a technique used in data transmission to prevent the occurrence of a specific bit pattern (like a flag) in the data stream. It involves inserting a non-informational bit (usually a '0') after a sequence of consecutive bits (like five '1's) to ensure that the flag pattern does not appear in the data. This helps maintain synchronization between the sender and receiver.