Which of the following is the primary function of the IP (Internet Protocol) in computer networking?
A Encryption
B Routing
C Addressing
D Error detection
IP (Internet Protocol) is responsible for addressing and routing data packets between devices in a network. It assigns unique IP addresses to devices and determines how data is transmitted from source to destination across networks.
Which version of IP allows for a larger address space, IPv4 or IPv6?
A IPv6
B Both
C IPv4
D None
IPv6 was developed to address the limitations of IPv4, particularly the exhaustion of available addresses. IPv6 uses 128 bit addresses, allowing for a vastly larger number of unique addresses compared to IPv4’s 32 bit addresses.
Which routing algorithm uses a table to find the shortest path based on pre configured metrics such as hop count?
A Path Vector
B Distance Vector
C Link State
D Hybrid
Distance Vector routing algorithms determine the best path by calculating the shortest distance based on predefined metrics like hop count. Routers periodically exchange routing tables with neighbors to update the network paths.
Which of the following protocols is responsible for managing traffic flow in a network and preventing congestion?
A UDP
B ICMP
C TCP
D HTTP
TCP (Transmission Control Protocol) manages data flow in a network to prevent congestion and ensure reliable transmission. It uses flow control mechanisms such as windowing and congestion control to maintain efficient communication.
Which layer of the OSI model is responsible for the delivery of messages between two devices on a network?
A Transport
B Application
C Data Link
D Network
The Transport layer (Layer 4) ensures reliable data delivery between devices. It handles error correction, flow control, and ensures that data is delivered in the correct order and without corruption.
Which network security protocol is used to secure communications over a public network by encrypting data packets?
A SNMP
B FTP
C SSL/TLS
D HTTP
SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are cryptographic protocols that provide secure communication over a network by encrypting data packets, ensuring privacy and integrity during transmission.
What does NAT (Network Address Translation) do in a network?
A Routes data
B Translates IP addresses
C Encrypts data
D Assigns IP addresses
NAT (Network Address Translation) modifies the source or destination IP addresses in data packets. It is commonly used to allow multiple devices on a local network to share a single public IP address when accessing the internet.
Which of the following is a key feature of a VPN (Virtual Private Network)?
A Provides encryption
B Uses public IP addresses
C Increases network speed
D Transmits data in plaintext
A VPN (Virtual Private Network) encrypts data traffic between a user’s device and a remote network, ensuring that sensitive data remains secure while traveling over the internet, even on public networks.
Which of the following protocols is used to send error messages in IP based networks?
A FTP
B ARP
C DNS
D DHCP
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on a network. It simplifies network management by ensuring that devices receive unique addresses without requiring manual configuration.
Which of the following protocols is responsible for dynamically assigning IP addresses to devices in a network?
A FTP
B ARP
C DNS
D DHCP
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on a network. It simplifies network management by ensuring that devices receive unique addresses without requiring manual configuration.
Which of the following is an example of a private IP address range?
A 10.0.0.0/8
B 172.16.0.0/12
C 192.168.0.0/16
D All of the above
All of the listed IP address ranges (10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16) are part of the private address space defined by RFC 1918, and they are used for local network communication, not routable on the public internet.
Which layer of the OSI model is responsible for converting data into a format suitable for transmission across a physical medium?
A Application
B Physical
C Data Link
D Transport
The Physical layer (Layer 1) of the OSI model is responsible for transmitting raw bits over a physical medium. It defines the hardware elements involved in data transmission, such as cables, connectors, and electrical signals.
Which of the following is a benefit of using IPv6 over IPv4?
A Compatibility with older devices
B Lower security
C Larger address space
D Faster routing
IPv6 offers a larger address space than IPv4. IPv6 uses 128 bit addresses compared to the 32 bit addresses used in IPv4, allowing for a significantly larger number of unique IP addresses, suitable for future network expansion.
Which of the following is a common method used in routing to reduce network traffic and ensure efficient data transmission?
A Load balancing
B DHCP
C NAT
D SSL/TLS
Load balancing is a method used to distribute network traffic evenly across multiple servers or network paths, preventing any single server or link from becoming overwhelmed. It helps optimize network performance and reliability.
Which type of IP address is used by devices on a local network and is not routable over the internet?
A Static IP
B Loopback IP
C Public IP
D Private IP
Private IP addresses are used by devices within a local network. These addresses are not routable on the internet and are typically used with NAT to allow internal devices to access external resources via a shared public IP address.