Computer networking MCQ

1311. On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

Correct Answer: Correct answer is: (B) VLAN 1.

Exam Relevance: CCNA, CompTIA Network+, Cisco Certified Network Associate

Difficulty: Moderate

Concept notes: The VLAN 1 interface is the default management interface on most switches, where an IP address is configured to allow remote management.

Common Mistakes: Students often confuse the management interface with physical interfaces like FastEthernet or the console port.

Explanations: The VLAN 1 interface is the default management interface on most switches. Configuring an IP address on this interface allows the switch to be managed remotely over the network. The other options, such as FastEthernet0/1, Vty 0, and Console 0, are not used for configuring an IP address for remote management.

Option Analysis:

Option A: FastEthernet0/1 is a physical interface and is not used for configuring an IP address for remote management.
Option B: VLAN 1 is the default management interface where an IP address is configured for remote management.
Option C: Vty 0 is a virtual terminal line used for remote access via Telnet or SSH, but it does not have an IP address.
Option D: Console 0 is a physical port used for local management and does not have an IP address.

Mnemonic: VLAN 1 = Management IP

1312. If communication software can be called the "traffic cop" of a micro communication syste, M then what should the modem be called?

Correct Answer: Correct answer is: (B) Bridge.

Exam Relevance: Computer Science, Networking, Telecommunications

Difficulty: Moderate

Concept notes: In a micro communication system, the modem acts as a bridge between the digital communication software and the analog telephone line, facilitating the transfer of data.

Common Mistakes: Students may confuse the modem with an interface, as both involve data transfer, but an interface typically refers to the software layer rather than the hardware component.

Explanations: The modem is called a bridge because it connects two different types of communication systems: digital and analog. It converts digital signals from the computer into analog signals that can be transmitted over telephone lines and vice versa. This function is analogous to a bridge that connects two different areas, allowing for the passage of information between them.

Option Analysis:

Option A: A park is not a relevant term for describing the function of a modem in a communication system.
Option B: A bridge is the correct term as it accurately describes the function of a modem in connecting digital and analog communication systems.
Option C: An interface typically refers to the software layer that enables communication between different software components, not the hardware component that connects digital and analog systems.
Option D: A link is a more general term and does not specifically describe the function of a modem as a converter between digital and analog signals.

Mnemonic: Modem = Digital to Analog Bridge

1313. VP stands for

Correct Answer: Correct answer is: (A) Virtual paths.

Exam Relevance: GATE, GRE, CCNA

Difficulty: Very Easy

Concept notes: VP stands for Virtual Paths, which are used in telecommunications networks to provide a flexible and efficient way to route data.

Common Mistakes: Students may confuse VP with other similar acronyms or terms, such as Virtual Private Network (VPN) or Virtual Protocol.

Explanations: VP stands for Virtual Paths, which are a fundamental concept in telecommunications networks. Virtual paths are used to route data packets through a network in a flexible and efficient manner. They are part of the broader concept of virtual circuit switching, which allows for the creation of dedicated communication channels within a network.

Option Analysis:

Option A: Correct. VP stands for Virtual Paths.
Option B: Incorrect. VP does not stand for Virtual Protocol.
Option C: Incorrect. VP does not stand for Virtual Plots.
Option D: Incorrect. VP does not stand for Virtual Plan.

Mnemonic: VP = Virtual Paths

1314. Is the way a network is arranged, including the physical or logical description of how links and nodes are set up to relate to each other.

Correct Answer: Correct answer is: (A) Network Topology.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: Network Topology refers to the arrangement of a network, including the physical or logical description of how links and nodes are set up to relate to each other.

Common Mistakes: Students may confuse network topology with other network-related terms such as network protocols or network architecture.

Explanations: Network Topology is the correct answer because it specifically describes the arrangement of a network, including the physical or logical layout of links and nodes. This matches the description given in the question.

Option Analysis:

Option A: Correct. Network Topology is the arrangement of a network, including the physical or logical description of how links and nodes are set up to relate to each other.
Option B: Incorrect. Product Topology is a concept in mathematics and does not relate to network arrangements.
Option C: Incorrect. Computer Network is a broader term that refers to the interconnection of computers, but does not specifically describe the arrangement of links and nodes.
Option D: Incorrect. Computer Topology is not a standard term and does not accurately describe the arrangement of a network.

1315. A connection oriented protocol creates a relationship between segments using

Correct Answer: Correct answer is: (D) Sequence Numbers.

Exam Relevance: Computer Networks, CCNA, CISSP

Difficulty: Moderate

Concept notes: In a connection-oriented protocol, sequence numbers are used to establish and maintain the order of segments in a communication session.

Common Mistakes: Students may confuse sequence numbers with other methods of segment identification, such as frame or packet sequencing, which are not specific to maintaining a connection.

Explanations: Sequence numbers are crucial in connection-oriented protocols because they ensure that data segments are reassembled in the correct order at the destination. This is essential for maintaining the integrity of the data stream. Sequence numbers allow the protocol to track and acknowledge the receipt of each segment, ensuring reliable and ordered delivery.

Option Analysis:

Option A: Sequence Frame is not a standard term used in connection-oriented protocols.
Option B: Sequence Packets is not a standard term used in connection-oriented protocols.
Option C: Flow Path is not a standard term used in connection-oriented protocols for segment relationship.
Option D: Sequence Numbers are used to maintain the order of segments in a connection-oriented protocol.

1316. Consider different activities related to email. m1: Send an email from a mail client to a mail server m2: Download an email from mailbox server to a mail client m3: Checking email in a web browser Which is the application level protocol used in each activity?

Correct Answer: Correct answer is: (C) Ml: SMTP m2: POP m3: HTTP.

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Moderate

Concept notes: SMTP (Simple Mail Transfer Protocol) is used for sending emails from a mail client to a mail server. POP (Post Office Protocol) is used for downloading emails from a mailbox server to a mail client. HTTP (Hypertext Transfer Protocol) is used for accessing web-based email services.

Common Mistakes: Students often confuse SMTP with POP, as both are related to email but serve different functions. SMTP is for sending, while POP is for receiving.

Explanations: SMTP is the standard protocol for sending emails from a mail client to a mail server. POP is used to download emails from a mailbox server to a mail client, typically for offline reading. HTTP is used for accessing web-based email services, such as Gmail or Yahoo Mail, where users check their emails through a web browser.

Option Analysis:

Option A: Incorrect because HTTP is not used for sending emails, and POP is not used for downloading emails.
Option B: Incorrect because FTP is not used for downloading emails, and HTTP is not used for checking emails in a web browser.
Option C: Correct because SMTP is used for sending emails, POP is used for downloading emails, and HTTP is used for checking emails in a web browser.
Option D: Incorrect because POP is not used for sending emails, and IMAP is not used for checking emails in a web browser.

Mnemonic: SMTP: Send Mail To People, POP: Pick Out Posts, HTTP: HyperText Transfer Protocol

1317. Time-Division multiplexing (TDM) is a digital technique of

Correct Answer: Correct answer is: (C) Multiplexing.

Exam Relevance: GATE, ECE, EE, Computer Networks

Difficulty: Easy

Concept notes: Time-Division Multiplexing (TDM) is a technique used to combine multiple digital signals into a single channel by allocating different time slots to each signal.

Common Mistakes: Students may confuse TDM with other multiplexing techniques like Frequency-Division Multiplexing (FDM) or think it is a form of encoding or decoding.

Explanations: Time-Division Multiplexing (TDM) is a method of combining multiple digital signals into a single channel by allocating different time slots to each signal. This technique allows multiple signals to share the same transmission medium without interference, making it a form of multiplexing.

Option Analysis:

Option A: Encoding is the process of converting data into a format suitable for transmission, not a multiplexing technique.
Option B: Decoding is the reverse process of encoding, not a multiplexing technique.
Option C: Multiplexing is the correct term for combining multiple signals into a single channel, which TDM accomplishes by time division.
Option D: Demultiplexing is the process of separating combined signals, not the technique used to combine them.

1318. Cable TV network is an example of ..... Network

Correct Answer: Correct answer is: (B) MAN.

Exam Relevance: Computer Networks, Data Communications, Network Fundamentals

Difficulty: Easy

Concept notes: Cable TV networks are typically classified as Metropolitan Area Networks (MANs) because they cover a larger geographical area than Local Area Networks (LANs) but are smaller in scale than Wide Area Networks (WANs).

Common Mistakes: Students may confuse Cable TV networks with LANs, thinking they are confined to a single building or small area.

Explanations: Cable TV networks span a metropolitan area, connecting multiple buildings or neighborhoods. This makes them a MAN, as they are designed to cover a larger area than a LAN but are not as extensive as a WAN. MANs are ideal for connecting multiple LANs within a city or region, which aligns with the function of cable TV networks.

Option Analysis:

Option A: LANs are limited to a small area, such as a single building or campus, which does not fit the scale of a cable TV network.
Option B: MANs cover a metropolitan area, fitting the scale and function of a cable TV network.
Option C: PANs are Personal Area Networks, which are very small and typically cover the immediate area around a person, not suitable for cable TV networks.
Option D: This option is incorrect as MAN is the correct classification for cable TV networks.

Mnemonic: Cable TV = City-wide MAN

1319. You are in the process of analyzing a problem that requires you to collect and store TCP/IP Packets. Which of the following utilities is best suited for this purpose?

Correct Answer: Correct answer is: (C) Network Monitor.

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Moderate

Concept notes: Network Monitor is a utility designed to capture and analyze network traffic, including TCP/IP packets.

Common Mistakes: Students may confuse Network Monitor with other network utilities that do not have packet capture capabilities.

Explanations: Network Monitor is specifically designed to capture and analyze network traffic, including TCP/IP packets. This makes it the most appropriate tool for the task of collecting and storing TCP/IP packets. Other utilities like NBTSTAT, Performance Monitor, and DHCP Management Console do not have the capability to capture and store network packets.

Option Analysis:

Option A: NBTSTAT is a command-line utility that displays protocol statistics and current TCP/IP connections using NBT (NetBIOS over TCP/IP). It does not capture network packets.
Option B: Performance Monitor is a tool used to monitor system performance and resource usage. It does not capture network packets.
Option C: Network Monitor is a utility designed to capture and analyze network traffic, including TCP/IP packets. This makes it the correct choice for the task.
Option D: DHCP Management Console is used to manage DHCP servers and does not capture network packets.

1320. Thorough planning must take place when setting up an 802.3 network. A maximum number of segments can separate any two nodes on the network. What is the maximum number of segments allowed between two nodes?

Correct Answer: Correct answer is: (A) Five.

Exam Relevance: CCNA, CompTIA Network+, CIW Network Specialist

Difficulty: Moderate

Concept notes: In an 802.3 network, the maximum number of segments allowed between any two nodes is five.

Common Mistakes: Students often confuse the number of segments with the number of repeaters or hubs allowed, which is a different concept.

Explanations: The IEEE 802.3 standard specifies that the maximum number of segments between any two nodes on an Ethernet network is five. This limitation ensures that the network can maintain proper signal integrity and timing. Each segment can be connected using repeaters, but the total number of segments must not exceed five to prevent signal degradation and ensure reliable communication.

Option Analysis:

Option A: Correct. The maximum number of segments allowed between any two nodes is five.
Option B: Incorrect. Four segments do not meet the maximum allowed by the standard.
Option C: Incorrect. Six segments exceed the maximum allowed by the standard.
Option D: Incorrect. Three segments do not meet the maximum allowed by the standard.

Mnemonic: Five segments, five stars, shine bright.

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Computer networking MCQ - Set 132

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