Welcome to the Communication Systems and Networks MCQs with Answers. In this post, we are sharing Communication Systems and Networks Multiple Choice Questions and Answers in Everyday Science section for various competitive exams in Pakistan. Each question offers a chance to enhance your knowledge regarding Communication Systems and Networks online MCQs Test.
What does TCP/IP stand for in networking?
a) Transmission Control Protocol/Internet Protocol
b) Transmission Communication Protocol/Internet Protocol
c) Transfer Control Protocol/Integrated Protocol
d) Transfer Communication Protocol/Internet Protocol
Which network topology uses a central node to which all other nodes are connected?
a) Star
b) Ring
c) Bus
d) Mesh
What is the primary function of a network switch?
a) To connect multiple devices and manage data traffic
b) To provide internet access
c) To store data
d) To manage email communications
Which protocol is used to send email over the internet?
a) FTP
b) HTTP
c) SMTP
d) IMAP
What is a subnet mask used for in IP networking?
a) To identify the network and host portions of an IP address
b) To manage network traffic
c) To encrypt data
d) To connect to the internet
Which type of cable is commonly used in Ethernet networks?
a) Coaxial cable
b) Fiber optic cable
c) Twisted pair cable
d) HDMI cable
What does VPN stand for in networking?
a) Virtual Private Network
b) Variable Protocol Network
c) Virtual Public Network
d) Verified Private Network
Which of the following is a wireless communication technology used for short-range data exchange?
a) Wi-Fi
b) Bluetooth
c) DSL
d) Fiber optics
What does the acronym DNS stand for?
a) Domain Name System
b) Data Network System
c) Digital Name Service
d) Dynamic Network Service
What is the purpose of a router in a network?
a) To route data between different networks
b) To connect to the internet
c) To store data
d) To manage local network security
Which technology is used to provide high-speed internet access over long distances?
a) Fiber optic cables
b) Ethernet cables
c) Satellite
d) DSL
Which protocol is responsible for assigning IP addresses to devices on a network?
a) DNS
b) DHCP
c) HTTP
d) FTP
What is the main purpose of a network firewall?
a) To filter and monitor incoming and outgoing network traffic
b) To enhance network speed
c) To provide additional storage
d) To manage email delivery
Which of the following is a method of data encryption in communication systems?
a) SSL/TLS
b) SMTP
c) IMAP
d) FTP
Which of the following describes a LAN?
a) A network that covers a large geographic area
b) A network used for long-distance communication
c) A network that connects devices within a limited area like a building
d) A network that provides internet access worldwide
What is the main function of a network hub?
a) To broadcast data to all devices on the network
b) To store network data
c) To manage email services
d) To route data between different networks
Which network device operates at the data link layer of the OSI model?
a) Router
b) Hub
c) Switch
d) Modem
What is the role of QoS in networking?
a) To prioritize network traffic to ensure optimal performance for critical applications
b) To manage network bandwidth
c) To provide internet security
d) To configure network hardware
Which wireless communication standard is used for high-speed internet access over short distances?
a) 4G
b) Wi-Fi
c) Bluetooth
d) Zigbee
What does the term ‘bandwidth’ refer to in a network?
a) The maximum rate of data transfer across a network
b) The physical distance between network nodes
c) The speed of a computer processor
d) The type of network cables used
Which protocol is used for secure web communication?
a) HTTP
b) HTTPS
c) FTP
d) SMTP
What is the function of a modem in a network?
a) To convert digital signals to analog signals and vice versa
b) To manage network traffic
c) To store data
d) To enhance network security
Which of the following is a commonly used IP addressing scheme?
a) IPv4
b) IPv6
c) Both IPv4 and IPv6
d) IPv3
What is a MAC address used for in networking?
a) To uniquely identify network devices at the hardware level
b) To encrypt data transmitted over the network
c) To assign IP addresses to devices
d) To manage network traffic
Which of the following is a type of network attack that involves overwhelming a server with traffic?
a) Phishing
b) Denial of Service (DoS)
c) Man-in-the-Middle
d) SQL Injection
What does the acronym VoIP stand for?
a) Voice over Internet Protocol
b) Video over Internet Protocol
c) Voice on Internet Protocol
d) Video on Internet Protocol
Which network topology connects all devices to a single central cable?
a) Bus
b) Star
c) Ring
d) Mesh
What is the purpose of network segmentation?
a) To divide a network into smaller, manageable parts for improved performance and security
b) To increase the number of devices on a network
c) To connect multiple networks into a larger network
d) To enhance wireless coverage
Which device is used to extend the range of a wireless network?
a) Repeater
b) Router
c) Switch
d) Modem
What is the main function of a network interface card (NIC)?
a) To connect a computer to a network
b) To manage network traffic
c) To store data
d) To provide internet access
What is a VLAN in networking?
a) Virtual Local Area Network
b) Virtual Long Area Network
c) Variable Local Area Network
d) Verified Local Area Network
Which technology is used for high-speed, long-distance data transmission in networking?
a) Fiber optics
b) Ethernet
c) DSL
d) Coaxial cable
What is the main purpose of Network Address Translation (NAT)?
a) To allow multiple devices on a local network to share a single public IP address
b) To encrypt data transmitted over the network
c) To assign IP addresses dynamically
d) To connect different types of networks
Which of the following is a popular network protocol for file transfer?
a) FTP
b) HTTP
c) SMTP
d) DNS
Which of the following best describes a client-server model in networking?
a) A model where multiple devices request services from a central server
b) A model where all devices are equal and share resources equally
c) A model where devices communicate directly with each other without a central server
d) A model where data is stored only on client devices
What is the role of a proxy server in a network?
a) To act as an intermediary between clients and servers for improved security and performance
b) To manage network traffic
c) To store data
d) To provide internet access
Which technology allows devices to communicate without physical connections?
a) Wireless networking
b) Ethernet
c) Coaxial cables
d) Fiber optics
What is the function of a load balancer in a network?
a) To distribute network traffic evenly across multiple servers
b) To store data
c) To provide network security
d) To connect different networks
Which of the following describes a network protocol?
a) A set of rules for data communication over a network
b) A type of network hardware
c) A method for encrypting data
d) A technique for managing network traffic
What is a public IP address used for?
a) To identify a device on the internet
b) To manage local network traffic
c) To connect devices within a private network
d) To store data securely
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