Computer Networks MCQs#1. What is the purpose of a router in a computer network? To connect different networks and forward data between them To connect different networks and forward data between them To filter spam emails To filter spam emails To store data in a centralized location To store data in a centralized location To display web pages in a browser To display web pages in a browser None of the above None of the above #2. Which protocol is used for secure communication over a computer network? FTP FTP HTTP HTTP SSL/TLS SSL/TLS POP POP SMTP SMTP #3. What is the purpose of an IP address in a computer network? To identify a device on the network To identify a device on the network To determine the color scheme of a website To determine the color scheme of a website To play multimedia files To play multimedia files To manage printer settings To manage printer settings To send emails To send emails #4. Which device is used to connect multiple computers in a local area network (LAN)? Router Router Switch Switch Modem Modem Hub Hub Firewall Firewall #5. What is the purpose of DNS (Domain Name System) in a computer network? To convert human-readable domain names into IP addresses To convert human-readable domain names into IP addresses To secure wireless networks To secure wireless networks To compress data for faster transmission To compress data for faster transmission To filter websites To filter websites To encrypt emails To encrypt emails Download as PDFRelated posts:Big Data MCQsBlock Chain MCQsCloud Computing MCQsData Science MCQs#6. Which network topology connects all devices in a linear sequence? Star Star Bus Bus Ring Ring Mesh Mesh Tree Tree #7. What does LAN stand for in computer networking? Local Area Network Local Area Network Long-range Access Network Long-range Access Network Large-scale Area Network Large-scale Area Network Low-latency Access Network Low-latency Access Network Limited Area Network Limited Area Network #8. Which protocol is used for sending and receiving email messages over the internet? SMTP SMTP HTTP HTTP FTP FTP DNS DNS POP POP #9. What is the purpose of a firewall in a computer network? To protect against unauthorized access and malicious activity To protect against unauthorized access and malicious activity To enhance download speed To enhance download speed To store files in the cloud To store files in the cloud To convert analog signals to digital To convert analog signals to digital To print documents To print documents #10. Which layer of the OSI model is responsible for ensuring error-free data transmission? Physical layer Physical layer Data link layer Data link layer Network layer Network layer Transport layer Transport layer Presentation layer Presentation layer Download as PDFRelated posts:Big Data MCQsBlock Chain MCQsCloud Computing MCQsData Science MCQs#11. Which device connects a local network to the internet? Modem Modem Router Router Switch Switch Firewall Firewall Hub Hub #12. Which networking device operates at the Data Link layer of the OSI model and uses MAC addresses to forward data packets? Switch Switch Router Router Hub Hub Modem Modem Firewall Firewall #13. In a wireless network, what does SSID stand for? Service Set Identifier Service Set Identifier Security Set Identifier Security Set Identifier System Set Identifier System Set Identifier Service Security Identifier Service Security Identifier System Security Identifier System Security Identifier #14. What is the purpose of NAT (Network Address Translation) in a router? It allows multiple devices on a local network to share a single public IP address It allows multiple devices on a local network to share a single public IP address It encrypts data for secure transmission It encrypts data for secure transmission It filters incoming emails It filters incoming emails It converts analog signals to digital It converts analog signals to digital It manages printer settings It manages printer settings #15. Which protocol is used for transferring files over the internet? FTP FTP SMTP SMTP HTTP HTTP POP POP DNS DNS Download as PDFRelated posts:Big Data MCQsBlock Chain MCQsCloud Computing MCQsData Science MCQs#16. Which type of network provides internet connectivity to devices within a limited geographic area, like a coffee shop or airport? WLAN (Wireless Local Area Network) WLAN (Wireless Local Area Network) LAN (Local Area Network) LAN (Local Area Network) WAN (Wide Area Network) WAN (Wide Area Network) MAN (Metropolitan Area Network) MAN (Metropolitan Area Network) PAN (Personal Area Network) PAN (Personal Area Network) #17. What is the purpose of a subnet mask in IP networking? It defines the network portion of an IP address and the host portion It defines the network portion of an IP address and the host portion It encrypts data for secure transmission It encrypts data for secure transmission It filters incoming emails It filters incoming emails It converts analog signals to digital It converts analog signals to digital It manages printer settings It manages printer settings #18. What is the maximum transmission speed of a standard Ethernet connection in bits per second? 1000 Mbps (1 Gigabit per second) 1000 Mbps (1 Gigabit per second) 100 Mbps (100 Megabits per second) 100 Mbps (100 Megabits per second) 10 Mbps (10 Megabits per second) 10 Mbps (10 Megabits per second) 1 Gbps (1 Gigabit per second) 1 Gbps (1 Gigabit per second) 10 Gbps (10 Gigabits per second) 10 Gbps (10 Gigabits per second) #19. What is the purpose of a DNS cache in a computer system? It stores recently accessed DNS records to speed up future lookups It stores recently accessed DNS records to speed up future lookups It encrypts data for secure transmission It encrypts data for secure transmission It filters incoming emails It filters incoming emails It converts analog signals to digital It converts analog signals to digital It manages printer settings It manages printer settings #20. In a network, what does the term "bandwidth" refer to? The maximum data transfer rate of a network connection The maximum data transfer rate of a network connection The physical width of a network cable The physical width of a network cable The distance between devices on a network The distance between devices on a network The number of devices connected to a network The number of devices connected to a network The speed of data transmission on a network The speed of data transmission on a network Download as PDFRelated posts:Big Data MCQsBlock Chain MCQsCloud Computing MCQsData Science MCQsNextResults Download as PDFRelated posts:Big Data MCQsBlock Chain MCQsCloud Computing MCQsData Science MCQs Download as PDFRelated posts:Big Data MCQsBlock Chain MCQsCloud Computing MCQsData Science MCQs Download as PDFShare this:Click to share on Facebook (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Related posts:Big Data MCQsBlock Chain MCQsCloud Computing MCQsData Science MCQs