Computer Networks: Master the Fundamentals of Network Connectivity

Question 1

Which project scheduling technique is primarily used to determine the sequence of activities that directly affect the project's overall duration?

Accepted Answer

Critical Path Analysis (CPA)

Answer

Linear Programming

Answer

Monte Carlo Simulation

Answer

Activity-on-node (AON) Diagramming

Question 2

In project management, which technique is employed to pinpoint and address potential risks?

Accepted Answer

Fault tree analysis

Answer

Brainstorming

Answer

Gantt chart

Answer

SWOT analysis

Question 3

In project management, what is the main purpose of a Work Breakdown Structure (WBS)?

Accepted Answer

Define the project's scope and deliverables

Answer

Outline the project's timeline

Answer

Allocate resources to project tasks

Answer

Identify and manage project risks

Question 4

In the project execution phase, which step entails creating a detailed plan for the project's activities?

Accepted Answer

Developing the project schedule

Answer

Defining project scope

Answer

Executing project risk management

Answer

Closing the project

Question 5

In project management, what's the main purpose of creating a Work Breakdown Structure (WBS)?

Accepted Answer

To outline the project's deliverables and their connections

Answer

To estimate the project's budget

Answer

To identify potential project risks

Answer

To determine the best project schedule

Question 6

To effectively manage project risks, which strategy should be implemented?

Accepted Answer

Identify risks and develop contingency plans for each.

Answer

Ignore identified risks.

Answer

Transfer all risks to a third party.

Answer

Monitor risks without taking action.

Question 7

In project execution, which of the following is a key aspect of risk management?

Accepted Answer

Proactively identifying and mitigating potential project risks

Answer

Relying solely on reactive measures to address risks

Answer

Managing project risks in isolation without considering their impact on other project aspects

Answer

Prioritizing financial risks over other types of project risks

Question 8

Which of the following is not a project scheduling technique?

Accepted Answer

Waterfall

Answer

Gantt Chart

Answer

PERT

Answer

CPM

Question 9

Which of the following is NOT a project scheduling technique?

Accepted Answer

SWOT Analysis

Answer

Gantt Chart

Answer

PERT

Answer

CPM

Question 10

In project execution, what is a crucial element for effective risk management?

Accepted Answer

Creating a comprehensive risk management plan

Answer

Ignoring risks until they become major problems

Answer

Relying solely on personal instincts and subjective judgments

Answer

Ignoring risks that are considered insignificant

Question 11

In project execution, which element is critical for ensuring quality management?

Accepted Answer

Following established quality standards and specifications

Answer

Focusing primarily on reducing costs

Answer

Ignoring customer feedback during execution

Answer

Relying solely on automated quality control tools

Question 12

During project execution, which activity entails monitoring project deliverables and comparing actual progress to planned progress?

Accepted Answer

Project Monitoring and Control

Answer

Project Initiation

Answer

Project Risk Management

Answer

Project Closure

Question 13

In project scheduling, which technique is used to identify the critical activities that must be completed on time to ensure timely project completion?

Accepted Answer

PERT (Program Evaluation and Review Technique)

Answer

Gantt Chart

Answer

Work Breakdown Structure (WBS)

Answer

Monte Carlo Simulation

Question 14

Which of the following is an essential element of the Work Breakdown Structure (WBS)?

Accepted Answer

Tasks

Answer

Resources

Answer

Schedule

Answer

Budget

Question 15

In project execution, a significant challenge in stakeholder management is:

Accepted Answer

Addressing conflicts due to varying stakeholder interests and priorities

Answer

Including stakeholders with minimal impact on project outcomes

Answer

Obtaining timely and accurate information from stakeholders

Answer

Coordinating stakeholders located in different geographical areas

Question 16

In procurement management for project execution, the main reason for conducting a market analysis is to:

Accepted Answer

Identify potential suppliers and assess their capabilities.

Answer

Establish project priorities and goals.

Answer

Develop a comprehensive procurement plan and budget.

Question 17

In project execution, what is a key benefit of using a Work Breakdown Structure (WBS)?

Accepted Answer

Helps allocate resources effectively by defining project deliverables and tasks

Answer

Simplifies project planning by minimizing the number of project tasks

Question 18

What is the main purpose of a Gantt chart in project scheduling?

Accepted Answer

Visually represent task durations, dependencies, and the critical path.

Answer

Perform complex calculations for resource optimization.

Answer

Automatically create project timelines from data.

Answer

Provide real-time updates on project progress.

Question 19

In a network security implementation project, which ethical consideration is of paramount importance?

Accepted Answer

Protecting the privacy and confidentiality of user data

Answer

Adhering to project deadlines and financial constraints

Answer

Employing the latest and most advanced technologies

Answer

Maximizing profits for the organization

Question 20

In project execution, the project manager's primary responsibility is to:

Accepted Answer

Monitor progress, identify obstacles, and take corrective actions

Answer

Make all project decisions independently

Answer

Complete most project tasks personally

Answer

Delegate all tasks to team members without providing guidance

Question 21

In computer networks, which technique enhances resource efficiency by distributing network traffic across multiple servers?

Accepted Answer

Load balancing

Answer

Virtualization

Answer

Network slicing

Answer

Dynamic routing

Question 22

Which scheduling technique is visually represented using a horizontal bar chart, allowing for easy tracking of task start and end times?

Accepted Answer

Gantt chart

Answer

PERT

Answer

CPM

Answer

Scrum

Question 23

Within the OSI model, which layer is tasked with identifying and rectifying errors during data transmission?

Accepted Answer

Data Link Layer

Answer

Physical Layer

Answer

Network Layer

Answer

Transport Layer

Question 24

What is the main purpose of a router in a network?

Accepted Answer

To forward data packets between networks

Answer

To translate domain names into IP addresses

Answer

To provide security against unauthorized access

Answer

To store web pages and content

Question 25

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

Accepted Answer

To prevent unauthorized access to a network

Answer

To speed up the transfer of data

Answer

To translate network addresses

Answer

To store user login credentials

Question 26

Which protocol is primarily used for web browsing?

Accepted Answer

HTTP

Answer

TCP

Answer

UDP

Answer

FTP

Question 27

What is the difference between unicast and broadcast in networking?

Accepted Answer

Unicast is used to send data to a single destination, while broadcast sends data to multiple destinations.

Answer

Broadcast is used to send data to a single destination, while unicast sends data to multiple destinations.

Answer

Unicast and broadcast both send data to a single destination.

Answer

Unicast and broadcast both send data to multiple destinations.

Question 28

Which of the following is a key characteristic of wireless networking?

Accepted Answer

Mobility and freedom of movement

Answer

High bandwidth and low latency

Answer

Increased security and privacy

Answer

Reduced cost and complexity

Question 29

What is the primary purpose of an IP address?

Accepted Answer

To identify devices on a network

Answer

To specify the path of data transmission

Answer

To provide security for network traffic

Answer

To store user data

Question 30

What is the main difference between TCP and UDP protocols?

Accepted Answer

TCP provides reliable data transmission and error correction, while UDP does not.

Answer

UDP provides reliable data transmission and error correction, while TCP does not.

Answer

TCP and UDP both provide reliable data transmission and error correction.

Answer

TCP and UDP both do not provide reliable data transmission and error correction.

Question 31

Within the TCP/IP model, which layer is specifically tasked with ensuring reliable data delivery, even across unreliable networks?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Question 32

Which topology connects each node to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 33

What is the main purpose of a firewall?

Accepted Answer

To prevent unauthorized access to a network

Answer

To connect different networks together

Answer

To provide load balancing for network traffic

Answer

To store network data

Question 34

Which protocol is primarily designed for sending email?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

TCP

Question 35

Which of the following techniques helps prevent data loss during network transmission?

Accepted Answer

Error correction

Answer

Flow control

Answer

Encryption

Answer

Authentication

Question 36

What is the primary function of a MAC address?

Accepted Answer

To uniquely identify a device on a network

Answer

To assign an IP address to a device

Answer

To route traffic within a network

Answer

To provide security for a network

Question 37

In network topologies, which one features a central node that connects to all other nodes?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 38

Which network topology consists of interconnected nodes arranged in a circular pattern?

Accepted Answer

Ring

Answer

Bus

Answer

Star

Answer

Mesh

Question 39

Which protocol is used by web browsers to communicate with web servers?

Accepted Answer

HTTP

Answer

DNS

Answer

TCP

Answer

SMTP

Question 40

Which command is used to display the IP configuration of a computer?

Accepted Answer

ipconfig

Answer

ping

Answer

netstat

Answer

tracert

Question 41

What is the primary function of a subnet mask?

Accepted Answer

To divide a network into smaller segments

Answer

To specify the default gateway

Answer

To assign IP addresses to devices

Answer

To filter incoming traffic

Question 42

Which type of routing algorithm calculates the shortest path to a destination based on the number of hops?

Accepted Answer

Distance-vector routing

Answer

Static routing

Answer

Dynamic routing

Answer

Link-state routing

Question 43

What is the main purpose of using a VLAN in a network?

Accepted Answer

To isolate network traffic

Answer

To improve network performance

Answer

To provide redundancy

Answer

To implement security measures

Question 44

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

Accepted Answer

To connect a computer to a network

Answer

To manage IP addresses

Answer

To route traffic

Answer

To provide security

Question 45

Which of the following is not a recognized network topology?

Accepted Answer

Square

Answer

Bus

Answer

Star

Answer

Ring

Question 46

Which Layer 4 transport protocol guarantees reliable data delivery by incorporating error and flow control mechanisms?

Accepted Answer

TCP

Answer

UDP

Answer

ICMP

Answer

HTTP

Question 47

In network design and implementation, which action is considered a poor practice for risk mitigation?

Accepted Answer

Permitting unrestricted inbound traffic

Answer

Employing robust encryption protocols

Answer

Enforcing network segmentation

Answer

Disabling non-essential services

Question 48

How does cloud computing influence the design of computer networks? Analyze its impact on network architecture, traffic patterns, and security considerations.

Accepted Answer

Cloud computing consolidates network resources, simplifying network topologies.

Accepted Answer

Cloud computing intensifies traffic patterns, necessitating networks with enhanced bandwidth and reduced latency.

Answer

Cloud computing eliminates the need for physical network infrastructure, making network design redundant.

Answer

Cloud computing has no impact on network security, as data is stored remotely and not on local devices.

Question 49

What are the key principles and practices of network security risk assessment?

Accepted Answer

Identifying vulnerabilities, analyzing their impact, and implementing countermeasures.

Answer

Deploying security software and monitoring network traffic.

Answer

Conducting penetration testing and patching vulnerabilities.

Question 50

Which layer in the TCP/IP model is responsible for ensuring reliable data transfer?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 51

What is the primary purpose of using a MAC address?

Accepted Answer

To uniquely identify a device on a network segment

Answer

To connect to the Internet

Answer

To store user data

Answer

To route traffic

Question 52

Which network topology involves connecting devices in a linear fashion, with each device connected to exactly two other devices?

Accepted Answer

Bus

Answer

Ring

Answer

Star

Answer

Mesh

Question 53

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

Accepted Answer

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

Answer

To store data

Answer

To speed up network traffic

Answer

To connect to the Internet

Question 54

Which of the following is NOT a type of wireless network technology?

Accepted Answer

Ethernet

Answer

Wi-Fi

Answer

Zigbee

Answer

Bluetooth

Question 55

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

Accepted Answer

To forward data packets between different networks or subnetworks

Answer

To provide access to the Internet

Answer

To filter traffic

Answer

To store data

Question 56

Which of the following is a commonly used application layer protocol for transferring web pages?

Accepted Answer

HTTP

Answer

FTP

Answer

SMTP

Answer

Telnet

Question 57

What is the purpose of using a subnet mask in IP addressing?

Accepted Answer

To divide a network into smaller subnetworks and define the range of IP addresses available within each subnet

Answer

To filter traffic

Answer

To connect different networks

Answer

To provide access to the Internet

Question 58

Which of the following is a cloud computing service model that provides access to software applications without the need for installation on the user's device?

Accepted Answer

Software as a Service (SaaS)

Answer

Infrastructure as a Service (IaaS)

Answer

Function as a Service (FaaS)

Answer

Platform as a Service (PaaS)

Question 59

What is the key benefit of using virtualization in IT infrastructure?

Accepted Answer

To create multiple isolated virtual environments on a single physical server, improving resource utilization and flexibility

Answer

To speed up network traffic

Answer

To filter traffic

Answer

To connect different networks

Question 60

In the TCP/IP model, what layer is responsible for routing network packets?

Accepted Answer

Network Layer

Answer

Data Link Layer

Answer

Application Layer

Answer

Transport Layer

Question 61

Which network topology provides multiple redundant paths between devices?

Accepted Answer

Mesh Topology

Answer

Bus Topology

Answer

Tree Topology

Answer

Ring Topology

Question 62

What is the primary purpose of a MAC address?

Accepted Answer

To uniquely identify a device on a network

Answer

To route network packets

Answer

To store and retrieve user data

Answer

To establish internet connectivity

Question 63

Which protocol is primarily used for transmitting email messages?

Accepted Answer

SMTP

Answer

FTP

Answer

TCP

Answer

HTTP

Question 64

Describe the main functional difference between a router and a switch in a network.

Accepted Answer

Routers connect networks, switches connect devices within a network

Answer

Switches connect networks, routers connect devices within a network

Answer

Routers and switches perform the same function