Network Devices and Interconnections: Master the Basics of Network Connectivity

Question 1

Which network device operates at layer 3 and routes packets between networks?

Accepted Answer

Router

Answer

Hub

Answer

Switch

Answer

Gateway

Question 2

Which networking device operates at Layer 2 of the OSI model, allowing data to be transmitted between devices on the same local network segment?

Accepted Answer

Switch

Answer

Router

Answer

Firewall

Answer

Web server

Question 3

What is the primary purpose of a network interface card (NIC) in a computer system?

Accepted Answer

To enable the computer to connect to a wired network

Answer

To route network traffic between different networks

Answer

To provide security protection against cyber threats

Answer

To provide wireless connectivity

Question 4

In a star network topology, which component serves as the central connection point for all devices?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 5

What is the primary function of a modem in a network?

Accepted Answer

To convert digital signals from a computer into analog signals for transmission over telephone lines

Answer

To route network traffic between different networks

Answer

To encrypt network data for secure communication

Answer

To establish wireless connections between devices

Question 6

Which of the following is NOT considered a common type of network security threat?

Accepted Answer

Network latency

Answer

Malware

Answer

Phishing

Answer

Spam

Question 7

What is the primary purpose of using a network management system (NMS)?

Accepted Answer

To monitor and manage network devices and resources

Answer

To secure a network against unauthorized access or attacks

Answer

To provide network access to users

Answer

To connect separate networks together

Question 8

Which key advantage does cloud computing offer for network services?

Accepted Answer

Scalability and flexibility to meet changing network demands

Answer

Significant cost savings on hardware infrastructure

Answer

Enhanced security measures to protect network data

Answer

Improved network performance and reliability

Question 9

What is the primary purpose of a firewall in a network security setup?

Accepted Answer

To prevent unauthorized access to the network

Answer

To monitor network traffic for suspicious activity

Answer

To encrypt network data for secure transmission

Answer

To establish secure connections between networks

Question 10

In Ethernet networks, what type of cabling is commonly used for short-distance connections, offering a balanced combination of cost and performance?

Accepted Answer

Twisted pair cable

Answer

Fiber optic cable

Answer

Coaxial cable

Answer

Serial cable

Question 11

Within a network, what is the primary responsibility of a switch?

Accepted Answer

To forward data packets between devices on the same network segment

Answer

To manage network access and enforce security policies

Answer

To provide internet connectivity to devices

Answer

To store and manage network data

Question 12

In the context of TCP/IP networking, which protocol is essential for establishing and maintaining connections between devices?

Accepted Answer

TCP

Answer

HTTP

Answer

DNS

Answer

ICMP

Question 13

What is the fundamental purpose of a network interface card (NIC) installed in a device?

Accepted Answer

To physically connect the device to a wired or wireless network

Answer

To manage and control network traffic flow

Answer

To provide wireless internet connectivity without the need for cables

Answer

To store and retrieve network configuration information

Question 14

Which type of network topology features a central hub or switch to which all devices are directly connected?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 15

Within the OSI model, which layer is primarily responsible for ensuring the secure transmission of data across a network?

Accepted Answer

Transport layer

Answer

Network layer

Answer

Session layer

Answer

Application layer

Question 16

What is the primary function of a firewall deployed in a network environment?

Accepted Answer

To monitor and control incoming and outgoing network traffic based on defined security rules

Answer

To provide secure remote access to authorized users over a network

Answer

To optimize network performance by managing traffic flow and reducing congestion

Answer

To store and manage network data, ensuring its integrity and availability

Question 17

Which of the following is NOT a commonly used metric for evaluating the performance of a network?

Accepted Answer

Security

Answer

Latency

Answer

Bandwidth

Answer

Throughput

Question 18

What is the main distinction between Cat6 and Cat5e cabling standards?

Accepted Answer

Cat6 provides higher bandwidth and is backward compatible with Cat5e.

Answer

Cat5e supports a faster maximum data rate than Cat6.

Answer

Cat6 and Cat5e are virtually identical in performance and cost.

Question 19

In network communication, what is the primary function of IP addresses?

Accepted Answer

Unique numerical identifiers for network devices, enabling communication.

Answer

Exclusive identifiers for websites, allowing internet access.

Answer

Temporary identifiers that frequently change, hindering stable connections.

Answer

Applicable only in wired network connections, not wireless networks.

Question 20

Which network device is responsible for directing data packets between networks based on their IP addresses?

Accepted Answer

Router

Answer

Hub

Answer

Switch

Answer

Gateway

Question 21

Which type of network cable is suitable for high-speed data transmission and offers immunity to electromagnetic interference?

Accepted Answer

Fiber optic

Answer

Unshielded Twisted Pair (UTP)

Answer

Shielded Twisted Pair (STP)

Answer

Coaxial

Question 22

Which layer of the TCP/IP model is responsible for ensuring reliable data delivery?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 23

What is the purpose of a MAC address?

Accepted Answer

To uniquely identify a specific device on a network

Answer

To route data packets between networks

Answer

To control access to network resources

Answer

To provide security for network communications

Question 24

Which switch type forwards data based solely on the destination MAC address, without learning the MAC addresses of connected devices?

Accepted Answer

Cut-through switch

Answer

Layer 2 switch

Answer

Layer 3 switch

Answer

Store-and-forward switch

Question 25

What is the primary function of a network interface card (NIC)?

Accepted Answer

To connect a computer to a network

Answer

To route data packets between networks

Answer

To provide wireless connectivity

Answer

To manage network security

Question 26

What is the primary purpose of a network gateway?

Accepted Answer

To connect multiple networks with different protocols

Answer

To filter and control network traffic

Answer

To provide redundancy and fault tolerance

Answer

To translate IP addresses to MAC addresses

Question 27

What is the primary benefit of using virtual LANs (VLANs)?

Accepted Answer

Segmenting a network into logical groups

Answer

Improving network performance

Answer

Enhancing network security

Answer

Simplifying network management

Question 28

Which network cabling standard supports Gigabit Ethernet and offers a higher bandwidth capacity than Cat5e?

Accepted Answer

Cat6

Answer

Cat5

Answer

Cat5e

Answer

Cat7

Question 29

What is the primary function of a network interface card (NIC) for a device on a network?

Accepted Answer

Providing the physical connection to the network medium

Answer

Directing network traffic between devices on a network

Answer

Translating network addresses into MAC addresses

Answer

Filtering incoming and outgoing network packets

Question 30

How does subnetting improve network security?

Accepted Answer

It reduces the broadcast domain, limiting the spread of security threats.

Answer

It simplifies network management.

Answer

It improves IP address utilization efficiency.

Question 31

Which network device is responsible for determining the path and forwarding data packets to their destinations based on their addresses?

Accepted Answer

Router

Answer

Switch

Answer

Modem

Answer

Firewall

Question 32

What is the primary purpose of a switch in a network?

Accepted Answer

Connecting devices within a local network segment and forwarding frames based on their MAC addresses

Answer

Controlling access to a network using security policies

Answer

Translating domain names into IP addresses

Answer

Providing internet connectivity

Question 33

Which type of cabling is typically preferred for long-distance connections, such as between buildings?

Accepted Answer

Fiber optic cable

Answer

Twisted pair cable

Answer

Coaxial cable

Answer

Wireless

Question 34

What is the primary function of a network interface card (NIC)?

Accepted Answer

Connecting a device to a wired network

Answer

Storing data on a network

Answer

Protecting a network from security threats

Answer

Managing traffic flow on a network

Question 35

Which network topology has a centralized structure where all devices are connected to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 36

What is the role of a modem in a network?

Accepted Answer

Modulating and demodulating signals for data transmission over telephone lines or cable connections

Answer

Routing packets between different networks

Answer

Providing wireless connectivity

Answer

Filtering malicious traffic

Question 37

Which protocol is responsible for assigning IP addresses to devices on a network?

Accepted Answer

DHCP

Answer

TCP

Answer

UDP

Answer

HTTP

Question 38

What is the key difference between TCP and UDP protocols?

Accepted Answer

TCP establishes a reliable, connection-oriented communication, while UDP provides a connectionless, best-effort service

Answer

UDP is more reliable than TCP

Answer

TCP is primarily used for high-bandwidth applications, while UDP is suitable for low-latency applications

Answer

UDP is designed for secure connections, while TCP is not

Question 39

Which network security measure involves filtering incoming and outgoing network traffic based on predefined rules to restrict access to and from a network?

Accepted Answer

Firewall

Answer

Antivirus

Answer

Encryption

Answer

Intrusion detection system

Question 40

What is the primary purpose of a MAC address in a network?

Accepted Answer

Uniquely identifying a device on a network

Answer

Storing IP addresses

Answer

Transmitting data across a network

Answer

Providing security for a network

Question 41

Which network management technique prioritizes data flow to optimize bandwidth usage and reduce network congestion?

Accepted Answer

Traffic shaping

Answer

Network monitoring

Answer

VLAN segmentation

Question 42

Which tool is most appropriate for ongoing network monitoring and troubleshooting?

Accepted Answer

Network Monitoring System

Answer

Ping

Answer

Traceroute

Answer

SNMP

Question 43

In a network topology, which option employs a central device to connect multiple devices, forming a star-like structure?

Accepted Answer

Star Topology

Answer

Bus Topology

Answer

Ring Topology

Answer

Mesh Topology

Question 44

Which network device forwards data packets based on their destination IP addresses?

Accepted Answer

Router

Answer

Switch

Answer

Hub

Question 45

Which network device is primarily responsible for forwarding data packets between different networks?

Accepted Answer

Router

Answer

Switch

Answer

Firewall

Answer

Modem

Question 46

What is the main function of a network switch within a local area network (LAN)?

Accepted Answer

Connect devices within the same network segment, enabling communication between them.

Answer

Provide internet access to devices on the network.

Answer

Route data packets between different networks.

Question 47

Which type of cabling is commonly used in structured cabling systems for high-speed data transmission?

Accepted Answer

Cat6 or Cat6A

Answer

Coaxial cable

Answer

Telephone wire

Question 48

What is the primary purpose of a crossover cable in network connectivity?

Accepted Answer

To directly connect two similar network devices, such as two computers or two switches, without requiring a hub or switch.

Answer

To extend the length of a network cable.

Answer

To connect a computer to a switch.

Answer

To connect a switch to a router.

Question 49

Which network topology is characterized by all devices being connected to a central hub?

Accepted Answer

Star

Answer

Ring

Answer

Mesh

Answer

Bus

Question 50

What is the main purpose of a patch panel in a structured cabling system?

Accepted Answer

To provide a centralized point for terminating and managing network cables, making it easier to connect devices and troubleshoot issues.

Answer

To amplify network signals.

Answer

To filter network traffic.

Question 51

Which network device allows wireless devices to connect to a wired network?

Accepted Answer

Access point

Answer

Modem

Answer

Switch

Answer

Router

Question 52

Which network protocol is responsible for translating domain names (like example.com) into IP addresses?

Accepted Answer

DNS (Domain Name System)

Answer

HTTP (Hypertext Transfer Protocol)

Answer

TCP (Transmission Control Protocol)

Answer

FTP (File Transfer Protocol)

Question 53

What is the main purpose of subnetting in a network?

Accepted Answer

To divide a large network into smaller, more manageable subnets, improving efficiency and security by controlling traffic flow and access.

Answer

To increase the overall speed of the network.

Answer

To improve network security by creating isolated segments for different users or groups.