Cyber Olympiad Class 10 - Sample question paper 15
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Q1. In a network, what is the purpose of a MAC address?
a) Identify the network protocol
b) Identify the network interface card (NIC)
c) Determine the IP address
d) Establish secure connections
Answer: b) Identify the network interface card (NIC)
Explanation: A MAC address is a unique identifier assigned to the NIC of a device in a network.
Q2. What is the purpose of a subnet mask in networking?
a) Identify the network portion of an IP address
b) Determine the host portion of an IP address
c) Control access to a network
d) Establish a secure tunnel
Answer: a) Identify the network portion of an IP address
Explanation: A subnet mask helps identify the network and host portions of an IP address.
Q3. Which network device operates at the Data Link layer of the OSI model?
a) Router
b) Hub
c) Switch
d) Bridge
Answer: c) Switch
Explanation: A switch operates at the Data Link layer and uses MAC addresses to forward data within a local network.
Q4. What is the primary function of a DNS server in networking?
a) Encrypt data transmissions
b) Translate domain names to IP addresses
c) Control network traffic
d) Authenticate users
Answer: b) Translate domain names to IP addresses
Explanation: DNS servers resolve domain names to corresponding IP addresses, facilitating communication on the Internet.
Q5. In the context of networking, what is a VLAN (Virtual Local Area Network)?
a) Physical network segment
b) Logical network segment
c) Network protocol
d) Network security standard
Answer: b) Logical network segment
Explanation: A VLAN is a logical segmentation of a network, allowing for isolation and efficient traffic management.
Q6. What does the term "bandwidth" refer to in networking?
a) Data transfer speed
b) Network security level
c) Network topology
d) Data storage capacity
Answer: a) Data transfer speed
Explanation: Bandwidth measures the data transfer speed of a network, indicating how much data can be transmitted in a given time.
Q7. What is the primary purpose of the ICMP (Internet Control Message Protocol) in networking?
a) Encrypt data transmissions
b) Diagnose network connectivity issues
c) Authenticate users
d) Control network traffic
Answer: b) Diagnose network connectivity issues
Explanation: ICMP is used to diagnose and report errors in network connectivity, such as unreachable hosts or network congestion.
Q8. What is the purpose of a proxy server in networking?
a) Accelerate data transmission
b) Translate domain names to IP addresses
c) Control access to resources
d) Authenticate users
Answer: c) Control access to resources
Explanation: A proxy server controls access to resources by acting as an intermediary between users and the Internet.
Q9. What is the purpose of the OSI (Open Systems Interconnection) model in networking?
a) Provide a set of network protocols
b) Define a standard for network communication
c) Control network traffic
d) Translate domain names to IP addresses
Answer: b) Define a standard for network communication
Explanation: The OSI model provides a framework for understanding and developing network protocols, ensuring interoperability.
Q10. What is the purpose of a firewall in networking?
a) Accelerate data transmission
b) Control access to a network
c) Diagnose network connectivity issues
d) Translate domain names to IP addresses
Answer: b) Control access to a network
Explanation: A firewall controls incoming and outgoing network traffic, preventing unauthorized access and enhancing security.
Q11. In networking, what does the term "collision domain" refer to?
a) A network segment with shared bandwidth
b) A secure network segment
c) A network protocol
d) A virtual network segment
Answer: a) A network segment with shared bandwidth
Explanation: A collision domain is a network segment where data collisions can occur, impacting network performance.
Q12. What is the purpose of the ARP (Address Resolution Protocol) in networking?
a) Encrypt data transmissions
b) Translate domain names to IP addresses
c) Diagnose network connectivity issues
d) Map IP addresses to MAC addresses
Answer: d) Map IP addresses to MAC addresses
Explanation: ARP is used to map IP addresses to corresponding MAC addresses within a local network.
Q13. What is the purpose of a DHCP (Dynamic Host Configuration Protocol) server in networking?
a) Translate domain names to IP addresses
b) Assign dynamic IP addresses to devices on a network
c) Control access to a network
d) Diagnose network connectivity issues
Answer: b) Assign dynamic IP addresses to devices on a network
Explanation: DHCP servers dynamically assign IP addresses to devices on a network, simplifying network configuration.
Q14. What is the primary function of a NIDS (Network Intrusion Detection System) in networking?
a) Encrypt data transmissions
b) Translate domain names to IP addresses
c) Detect and respond to network security threats
d) Control network traffic
Answer: c) Detect and respond to network security threats
Explanation: NIDS monitors network traffic, identifying and responding to potential security threats.
Q15. What is the purpose of a proxy ARP in networking?
a) Map IP addresses to MAC addresses
b) Accelerate data transmission
c) Translate domain names to IP addresses
d) Control access to resources
Answer: a) Map IP addresses to MAC addresses
Explanation: Proxy ARP is used to map IP addresses to corresponding MAC addresses, assisting in routing data within a network.
Q16. In networking, what is the purpose of Quality of Service (QoS)?
a) Control access to a network
b) Accelerate data transmission
c) Ensure a certain level of performance for specific types of traffic
d) Translate domain names to IP addresses
Answer: c) Ensure a certain level of performance for specific types of traffic
Explanation: Quality of Service (QoS) ensures a specific level of performance for designated types of network traffic.
Q17. What is the purpose of a VPN (Virtual Private Network) in networking?
a) Translate domain names to IP addresses
b) Encrypt data transmissions
c) Map IP addresses to MAC addresses
d) Control access to resources
Answer: b) Encrypt data transmissions
Explanation: A VPN encrypts data transmissions, providing secure communication over a public network like the Internet.
Q18. In networking, what is the primary role of a router?
a) Control access to a network
b) Diagnose network connectivity issues
c) Forward data between different networks
d) Map IP addresses to MAC addresses
Answer: c) Forward data between different networks
Explanation: Routers forward data between different networks, facilitating communication between devices on separate networks.
Q19. What is the purpose of NAT (Network Address Translation) in networking?
a) Diagnose network connectivity issues
b) Encrypt data transmissions
c) Translate private IP addresses to a single public IP address
d) Control access to resources
Answer: c) Translate private IP addresses to a single public IP address
Explanation: NAT allows multiple devices on a local network to share a single public IP address when communicating over the Internet.
Q20. What is a characteristic of a full-duplex communication mode in networking?
a) Devices can only transmit or receive at a time
b) Devices can transmit and receive simultaneously
c) Devices require a hub for communication
d) Devices use half of the available bandwidth
Answer: b) Devices can transmit and receive simultaneously
Explanation: In full-duplex communication, devices can transmit and receive data simultaneously, enhancing communication efficiency.
Q21. What is the primary function of a DHCP relay agent in networking?
a) Assign dynamic IP addresses to devices
b) Forward DHCP messages between networks
c) Translate domain names to IP addresses
d) Control access to resources
Answer: b) Forward DHCP messages between networks
Explanation: A DHCP relay agent forwards DHCP messages between different networks, allowing centralized IP address assignment.
Q22. What is the purpose of a VLAN trunk in networking?
a) Control access to a network
b) Encrypt data transmissions
c) Transmit multiple VLANs over a single network link
d) Diagnose network connectivity issues
Answer: c) Transmit multiple VLANs over a single network link
Explanation: A VLAN trunk allows the transmission of multiple VLANs over a single network link, facilitating efficient network design.
Q23. What is a characteristic of a star topology in networking?
a) Devices are connected in a daisy-chain fashion
b) Devices are interconnected with each other
c) All devices are connected to a central hub or switch
d) Devices form a closed loop
Answer: c) All devices are connected to a central hub or switch
Explanation: In a star topology, all devices are connected to a central hub or switch, simplifying network management.
Q24. What is the purpose of a proxy firewall in networking?
a) Encrypt data transmissions
b) Control access to resources
c) Translate domain names to IP addresses
d) Map IP addresses to MAC addresses
Answer: b) Control access to resources
Explanation: A proxy firewall controls access to resources by acting as an intermediary between users and the Internet, filtering incoming and outgoing traffic.
Q25. What is the purpose of a DNS cache in networking?
a) Store encrypted data transmissions
b) Translate domain names to IP addresses
c) Diagnose network connectivity issues
d) Control access to resources
Answer: b) Translate domain names to IP addresses
Explanation: A DNS cache stores previously resolved domain name to IP address mappings, improving the efficiency of subsequent DNS queries.
Q26. What is the purpose of ICMP Echo Request and Echo Reply messages in networking?
a) Diagnose network connectivity issues
b) Translate domain names to IP addresses
c) Control access to resources
d) Monitor network performance
Answer: a) Diagnose network connectivity issues
Explanation: ICMP Echo Request and Echo Reply messages are used to diagnose network connectivity issues by testing the reachability of a host.
Q27. What is the purpose of a load balancer in networking?
a) Encrypt data transmissions
b) Accelerate data transmission
c) Distribute network traffic across multiple servers
d) Control access to resources
Answer: c) Distribute network traffic across multiple servers
Explanation: A load balancer distributes network traffic across multiple servers, ensuring optimal resource utilization and preventing server overload.
Q28. In networking, what is the purpose of a WPA (Wi-Fi Protected Access) key?
a) Control access to a network
b) Translate domain names to IP addresses
c) Secure wireless communication
d) Diagnose network connectivity issues
Answer: c) Secure wireless communication
Explanation: A WPA key is used to secure wireless communication by encrypting data transmitted between devices and the Wi-Fi access point.
Q29. What is the purpose of a MAC filtering in networking?
a) Control access to a network
b) Accelerate data transmission
c) Diagnose network connectivity issues
d) Translate domain names to IP addresses
Answer: a) Control access to a network
Explanation: MAC filtering is used to control access to a network by allowing or denying devices based on their MAC addresses.
Q30. What is a characteristic of a mesh topology in networking?
a) All devices are connected to a central hub or switch
b) Devices are interconnected with each other
c) Devices are connected in a daisy-chain fashion
d) Devices form a closed loop
Answer: b) Devices are interconnected with each other
Explanation: In a mesh topology, devices are interconnected with each other, providing redundancy and multiple communication paths.