Computer Knowledge

Computer Networks

2,256 Questions

Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.

Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure

Computer Networks Questions

Multiple choice

Which of the following is NOT a type of wireless connectivity technology commonly found in mobile devices?

  1. Wi-Fi

  2. Bluetooth

  3. NFC

  4. Ethernet
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ethernet is a wired networking technology used for connecting devices to a local area network (LAN). It is not typically found in mobile devices, which rely on wireless connectivity technologies such as Wi-Fi, Bluetooth, and NFC.

Multiple choice

Which of the following is NOT a type of mobile device network technology?

  1. GSM

  2. CDMA

  3. LTE

  4. Ethernet
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ethernet is a wired networking technology used for connecting devices to a local area network (LAN). It is not a type of mobile device network technology, which typically uses wireless technologies such as GSM, CDMA, and LTE.

Multiple choice

What is the term for the process of transmitting data over a network?

  1. Data Communication

  2. Data Transmission

  3. Data Networking

  4. Data Transfer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Data Communication is the process of transmitting data over a network.

Multiple choice

Which of the following is a type of network that connects devices within a limited physical area?

  1. Local Area Network (LAN)

  2. Wide Area Network (WAN)

  3. Metropolitan Area Network (MAN)

  4. Virtual Private Network (VPN)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A Local Area Network (LAN) is a type of network that connects devices within a limited physical area, such as a home, office, or school.

Multiple choice

What is the primary purpose of using a firewall in an IoT network?

  1. To block unauthorized access to the network.

  2. To monitor network traffic for suspicious activity.

  3. To prevent the spread of malware and viruses.

  4. To optimize network performance.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary purpose of a firewall in an IoT network is to block unauthorized access to the network and protect it from external threats.

Multiple choice

What is the recommended approach for securing IoT networks?

  1. Use a strong firewall to protect the network from unauthorized access.

  2. Implement network segmentation to isolate different parts of the network.

  3. Use intrusion detection and prevention systems to monitor network traffic for suspicious activity.

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of the above practices are important for securing IoT networks and protecting them from potential threats.

Multiple choice

Which of the following is a type of SAN technology?

  1. Fibre Channel

  2. iSCSI

  3. InfiniBand

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fibre Channel, iSCSI, and InfiniBand are all types of SAN technology. Fibre Channel is a high-speed network technology that is specifically designed for SANs. iSCSI is a protocol that allows SANs to be used over IP networks. InfiniBand is a high-speed network technology that is also used for SANs.

Multiple choice

What is the purpose of a firewall in IoT security?

  1. To block unauthorized access to IoT devices

  2. To prevent the spread of malware within an IoT network

  3. To monitor network traffic and identify suspicious activities

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Firewalls play a vital role in IoT security by blocking unauthorized access to IoT devices, preventing the spread of malware, and monitoring network traffic for suspicious activities.

Multiple choice

Which of the following is a best practice for securing IoT networks?

  1. Segment IoT networks from other networks

  2. Implement network access control (NAC) policies

  3. Use strong encryption for network communications

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To secure IoT networks effectively, it is essential to segment IoT networks from other networks, implement network access control (NAC) policies, and use strong encryption for network communications.

Multiple choice

What is the typical latency of an EDGE network?

  1. 10 milliseconds

  2. 50 milliseconds

  3. 100 milliseconds

  4. 500 milliseconds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The typical latency of an EDGE network is 100 milliseconds.

Multiple choice

What is the typical jitter of an EDGE network?

  1. 10 milliseconds

  2. 50 milliseconds

  3. 100 milliseconds

  4. 500 milliseconds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The typical jitter of an EDGE network is 50 milliseconds.

Multiple choice

What is the typical packet loss rate of an EDGE network?

  1. 1%

  2. 5%

  3. 10%

  4. 15%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The typical packet loss rate of an EDGE network is 5%.

Multiple choice

What is the typical handover time of an EDGE network?

  1. 10 milliseconds

  2. 50 milliseconds

  3. 100 milliseconds

  4. 500 milliseconds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The typical handover time of an EDGE network is 100 milliseconds.

Multiple choice

Which of the following is NOT a common type of SMO structure?

  1. Centralized

  2. Decentralized

  3. Hierarchical

  4. Networked
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hierarchical structures are not typically found in SMOs, as they tend to favor more decentralized and participatory structures.

Multiple choice

What is the core network of UMTS called?

  1. UTRAN

  2. CN

  3. RAN

  4. RNC
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The core network of UMTS is called the Core Network (CN).