Network Architecture: Master the Fundamentals of Network Design

Question 1

Which network troubleshooting technique sends specialized signals to check the functionality of network devices and pinpoint potential problems?

Accepted Answer

Ping

Answer

Traceroute

Answer

Telnet

Answer

SNMP

Question 2

In network design, which principles should guide your choices to strike a balance between cost, performance, and scalability?

Accepted Answer

Implement a hierarchical structure, use load balancing, and leverage virtualization.

Answer

Prioritize cost-effectiveness over performance and scalability.

Answer

Choose expensive components, use the latest protocols, and deploy a redundant infrastructure.

Question 3

For a network spanning a vast geographical area, which network topology is most suitable?

Accepted Answer

Mesh Topology

Answer

Bus Topology

Answer

Star Topology

Answer

Ring Topology

Question 4

In a star topology, which node is the central point of connection for all others?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 5

Which of the following is the primary responsibility of the Internet Protocol (IP)?

Accepted Answer

Routing data across networks

Answer

Establishing connections between devices

Answer

Providing error correction

Answer

Encrypting data

Question 6

Which of the listed options is NOT a metric used to measure network performance?

Accepted Answer

Cost

Answer

Bandwidth

Answer

Latency

Answer

Reliability

Question 7

What is the main purpose of the Transmission Control Protocol (TCP)?

Accepted Answer

Ensuring reliable data transfer

Answer

Establishing virtual circuits

Answer

Routing data through networks

Answer

Controlling network congestion

Question 8

Which of the following is a key advantage of using a layered network architecture?

Accepted Answer

Modularity and flexibility

Answer

Enhanced security and reliability

Answer

Simplified network management

Answer

Improved cost-effectiveness

Question 9

Explain the fundamental difference between a MAC address and an IP address.

Accepted Answer

MAC addresses are used for local network identification, while IP addresses are used for global network identification

Answer

MAC addresses are permanent, while IP addresses are dynamic

Answer

MAC addresses are assigned by network administrators, while IP addresses are assigned by Internet service providers

Answer

There is no difference between MAC addresses and IP addresses

Question 10

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

Accepted Answer

Routing data packets between networks

Answer

Connecting devices to a network

Answer

Providing security for the network

Answer

Storing data

Question 11

What is the purpose of the Session Initiation Protocol (SIP)?

Accepted Answer

Establishing, maintaining, and terminating voice and video calls over IP networks

Answer

Routing data traffic between devices

Answer

Providing security for network communications

Answer

Managing network resources

Question 12

Which network protocol is primarily responsible for setting up and sustaining connections between devices on a network?

Accepted Answer

TCP

Answer

DNS

Answer

DHCP

Question 13

Which of the following is not a fundamental type of network topology?

Accepted Answer

Grid

Answer

Bus

Answer

Star

Answer

Ring

Question 14

In the TCP/IP model, which layer is responsible for providing routing and addressing?

Accepted Answer

Network layer

Answer

Transport layer

Answer

Application layer

Answer

Data Link layer

Question 15

Which metric measures the amount of data that a network can transmit in a given time frame?

Accepted Answer

Bandwidth

Answer

Latency

Answer

Packet loss

Answer

Jitter

Question 16

What primary purpose does a subnet mask serve in IP addressing?

Accepted Answer

Dividing a network into smaller subnetworks

Answer

Determining the network address of a host

Answer

Filtering unwanted traffic

Answer

Assigning IP addresses to hosts

Question 17

Which network device is primarily used to connect multiple networks?

Accepted Answer

Router

Answer

Modem

Answer

Switch

Answer

Access point

Question 18

What is the main function of a firewall in a network?

Accepted Answer

Monitoring and controlling incoming and outgoing network traffic

Answer

Managing network traffic to optimize performance

Answer

Providing secure remote access to users

Answer

Converting between different network protocols

Question 19

Which layer in the OSI model is responsible for error detection and correction?

Accepted Answer

Data Link

Answer

Physical

Answer

Network

Answer

Transport

Question 20

What is the primary benefit of using a protocol suite in networking?

Accepted Answer

Establishing rules for communication and data exchange

Answer

Simplifying network administration

Answer

Enhancing network performance

Answer

Detecting and correcting data transmission errors

Question 21

Which network architecture involves connecting devices sequentially in a single line?

Accepted Answer

Bus

Answer

Star

Answer

Ring

Answer

Mesh

Question 22

How do TCP and UDP protocols differ primarily?

Accepted Answer

TCP provides reliable data delivery with error correction, while UDP provides unreliable data delivery without error correction

Answer

TCP is a connectionless protocol, while UDP is a connection-oriented protocol

Answer

TCP is used for bulk data transfer, while UDP is used for real-time applications

Answer

TCP is only used for internet communication, while UDP can be used for both internet and private networks

Question 23

Which protocol is responsible for the reliable delivery of data packets over a network?

Accepted Answer

TCP

Answer

UDP

Answer

DHCP

Answer

HTTP

Question 24

What performance metric measures the amount of data that can be transferred over a network in a given amount of time?

Accepted Answer

Throughput

Answer

Latency

Answer

Bandwidth

Answer

Reliability

Question 25

Which type of security threat involves an attacker gaining unauthorized access to sensitive information or systems?

Accepted Answer

Hacking

Answer

Malware

Answer

Phishing

Answer

Denial of service

Question 26

What is the term for the minimum amount of bandwidth required for an application or service to function properly?

Accepted Answer

Bandwidth requirement

Answer

Throughput

Answer

Latency

Answer

Packet loss

Question 27

Which network management tool allows for the monitoring of network traffic and analysis of network performance?

Accepted Answer

Wireshark

Answer

SNMP

Answer

Ping

Answer

Traceroute

Question 28

What is the process of converting domain names into the corresponding IP addresses called?

Accepted Answer

DNS

Answer

DHCP

Answer

Routing

Answer

NAT

Question 29

What is the primary function of a network protocol?

Accepted Answer

Establish communication rules between network devices

Answer

Ensure data integrity during transmission

Answer

Optimize network performance

Answer

Manage network resources

Question 30

Which of the following performance metrics measures the number of data packets transmitted per second?

Accepted Answer

Bandwidth

Answer

Latency

Answer

Packet loss

Answer

Jitter

Question 31

What is the primary responsibility of a router in a network?

Accepted Answer

Forward packets based on their network addresses

Answer

Connect devices to the network

Answer

Provide security for network traffic

Answer

Manage network resources

Question 32

What is the purpose of a subnet mask?

Accepted Answer

Determine the host portion of an IP address

Answer

Identify the network address

Answer

Configure the default gateway

Answer

Enable network communication

Question 33

Which of the following protocols operates at layer 2 of the OSI model?

Accepted Answer

Ethernet

Answer

IP

Answer

TCP

Answer

UDP

Question 34

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

Accepted Answer

Firewall

Answer

Malware

Answer

Phishing

Answer

Distributed denial-of-service (DDoS) attacks

Question 35

What is the primary purpose of a virtual private network (VPN)?

Accepted Answer

Securely connect remote users to a private network

Answer

Improve network performance

Answer

Provide anonymity on the internet

Answer

Monitor network traffic

Question 36

Which of the following is a crucial step in analyzing and optimizing computer network performance?

Accepted Answer

Identifying and addressing performance bottlenecks

Answer

Updating device drivers and software patches

Answer

Configuring firewall settings

Answer

Upgrading hardware components

Question 37

How does Software-Defined Networking (SDN) enhance network flexibility, control, and innovation in network design and management?

Accepted Answer

SDN separates the control plane from the data plane, enabling centralized network management and programmability.

Answer

SDN is applicable to networks of all sizes, offering benefits to both large and small networks.

Answer

SDN is compatible with existing network infrastructures and does not require specialized hardware.

Question 38

In a star network topology, which device acts as the central connection point?

Accepted Answer

Hub or Switch

Answer

Computer

Answer

Server

Answer

Router

Question 39

Which layer in the TCP/IP model is responsible for establishing and maintaining connections between devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 40

What performance metric measures the variation in the time it takes for packets to travel across a network?

Accepted Answer

Jitter

Answer

Latency

Answer

Throughput

Question 41

Which of the following tasks is typically performed by a network administrator?

Accepted Answer

Troubleshooting network connectivity issues

Answer

Writing network application software

Answer

Developing network protocols

Answer

Designing network hardware

Question 42

What is the function of a MAC address?

Accepted Answer

Uniquely identifies a device on a network segment

Answer

Routes packets to their destination

Answer

Determines the network bandwidth available to a device

Answer

Provides a secure connection for data transfer

Question 43

Which network technology utilizes fiber optic cables to provide high-speed internet access?

Accepted Answer

Fiber-to-the-Home (FTTH)

Answer

DSL

Answer

Wi-Fi

Answer

4G LTE

Question 44

What is the primary distinction between a router and a switch?

Accepted Answer

Routers connect different networks, while switches connect devices within a network

Answer

Switches are more secure than routers

Answer

Routers are faster than switches

Question 45

Which of the following is a recommended practice for designing a secure network?

Accepted Answer

Implementing a firewall and intrusion detection system

Answer

Using weak passwords

Answer

Allowing unrestricted access to all users

Question 46

What is the primary purpose of a network protocol?

Accepted Answer

Defining rules for data exchange and communication between devices

Answer

Providing security for data in transit

Answer

Detecting and correcting errors in data transmission

Question 47

Which of the following is a cloud computing service model?

Accepted Answer

Software as a Service (SaaS)

Answer

Latency

Answer

Network Topology

Answer

MAC Address

Question 48

Which network topology provides the highest level of fault tolerance, enabling communication even if a single connection fails?

Accepted Answer

Mesh topology

Answer

Star topology

Answer

Ring topology

Answer

Bus topology

Question 49

Which protocol ensures reliable data transmission across the internet by managing packet delivery and error handling?

Accepted Answer

TCP (Transmission Control Protocol)

Answer

HTTP (Hypertext Transfer Protocol)

Answer

IP (Internet Protocol)

Answer

UDP (User Datagram Protocol)

Question 50

Which of the following is NOT a layer in the OSI model?

Accepted Answer

Network Interface Layer

Answer

Data Link Layer

Answer

Presentation Layer

Answer

Physical Layer

Question 51

A company needs to connect two buildings several miles apart. Which network type is most suitable for this scenario?

Accepted Answer

WAN (Wide Area Network)

Answer

PAN (Personal Area Network)

Answer

LAN (Local Area Network)

Answer

MAN (Metropolitan Area Network)

Question 52

Which performance metric measures the time it takes for a data packet to travel from its source to its destination and back?

Accepted Answer

Round-trip time (RTT)

Answer

Bandwidth

Answer

Latency

Question 53

When a company experiences slow network performance, which tool can be used to identify network issues and potential bottlenecks?

Accepted Answer

Network monitoring tools (e.g., Wireshark, SolarWinds)

Answer

VPN clients

Answer

Network firewalls

Question 54

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

Accepted Answer

Forwarding data packets between networks based on destination IP addresses

Answer

Filtering incoming and outgoing network traffic based on security rules

Answer

Translating private IP addresses to public IP addresses

Question 55

In the TCP/IP model, which layer is responsible for addressing and routing data packets?

Accepted Answer

Internet Layer (IP)

Answer

Network Access Layer

Answer

Transport Layer

Answer

Application Layer

Question 56

What is the purpose of a subnet mask?

Accepted Answer

To distinguish the network portion from the host portion of an IP address

Answer

To translate private IP addresses to public IP addresses

Answer

To encrypt network traffic and protect sensitive data