Dear candidates you will find MCQ questions of Computer Networking here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
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Explanation: A hub broadcasts data to all devices without filtering. Switches filter using MAC addresses, routers filter by IP, and firewalls control traffic based on rules.
Explanation: Ethernet (Cat5/5e) cables have a maximum recommended length of 100 meters for reliable communication.
Explanation: SFTP (Secure File Transfer Protocol) provides encrypted file transfers. FTP and TFTP are insecure. SMTP is for email.
Explanation: IPv6 uses 128-bit addressing, providing a much larger address space than IPv4 (32-bit). IPX and ARP are different protocols.
Explanation: The Presentation Layer is responsible for data encryption, compression, and translation. Transport handles reliability, Session manages connections.
Explanation: DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses. DNS resolves domain names, ICMP is for errors, SNMP manages devices.
Explanation: Fiber optic cables use light instead of electrical signals, making them immune to EMI. Coaxial and twisted pair can be affected.
Explanation: HTTP (HyperText Transfer Protocol) is used to transfer web pages. FTP is for files, SMTP for sending email, IMAP for retrieving email.
Explanation: Switches operate at Layer 2 and use MAC addresses to forward frames. IP addresses are Layer 3, ports are Transport Layer.
Explanation: The Physical Layer transmits raw bits over the physical medium like cables and wireless. Other layers handle logical addressing and data management.