Answer: 3. SSL can cause network performance issues.
Explanation:
SSL introduces additional overhead due to encryption and decryption, which can slow down network performance.
252. What is ARP?
A routing protocol
A protocol used to map IP addresses to physical addresses
A protocol used to map physical addresses to IP addresses
None of these
Show me the answer
Answer: 2. A protocol used to map IP addresses to physical addresses
Explanation:
ARP (Address Resolution Protocol) resolves IP addresses to MAC addresses, enabling communication between devices on a local network.
253. What is RARP?
A protocol used to map IP addresses to physical addresses
A protocol used to map physical addresses to IP addresses
A routing protocol
None of these
Show me the answer
Answer: 2. A protocol used to map physical addresses to IP addresses
Explanation:
RARP (Reverse Address Resolution Protocol) resolves MAC addresses to IP addresses, typically used in diskless workstations.
254. What is IP?
A routing protocol
A protocol used to map IP addresses to physical addresses
A protocol used to map physical addresses to IP addresses
None of these
Show me the answer
Answer: 1. A routing protocol
Explanation:
IP (Internet Protocol) is responsible for addressing and routing packets between devices on a network.
255. What is ICMP?
A routing protocol
A protocol used to map IP addresses to physical addresses
A protocol used to map physical addresses to IP addresses
A protocol used to manage network errors and status messages
Show me the answer
Answer: 4. A protocol used to manage network errors and status messages
Explanation:
ICMP (Internet Control Message Protocol) is used for error reporting and diagnostic functions, such as ping and traceroute.
256. What is the main advantage of ARP over other routing protocols?
ARP is faster than other routing protocols.
ARP is more secure than other routing protocols.
ARP is simpler to use than other routing protocols.
Other routing protocols are faster than ARP.
Show me the answer
Answer: 3. ARP is simpler to use than other routing protocols.
Explanation:
ARP is a simple protocol used to resolve IP addresses to MAC addresses, making it easy to implement and use.
257. What is the port number for HTTP?
21
25
80
443
Show me the answer
Answer: 3. 80
Explanation:
HTTP (Hypertext Transfer Protocol) uses port 80 for unencrypted web traffic.
258. What is the port number for HTTPS?
21
25
80
443
Show me the answer
Answer: 4. 443
Explanation:
HTTPS (Hypertext Transfer Protocol Secure) uses port 443 for encrypted web traffic.
259. What is the port number for FTP?
21
25
80
443
Show me the answer
Answer: 1. 21
Explanation:
FTP (File Transfer Protocol) uses port 21 for file transfers.
260. What is the port number for SMTP?
21
25
80
443
Show me the answer
Answer: 2. 25
Explanation:
SMTP (Simple Mail Transfer Protocol) uses port 25 for sending emails.
261. What is the port number for Telnet?
21
25
80
443
Show me the answer
Answer: 1. 21
Explanation:
Telnet uses port 23 for remote terminal access.
262. What is the subnet mask for the following IP address: 192.168.100.25/20?
255.255.0.0
255.255.240.0
255.255.255.0
255.255.255.240
Show me the answer
Answer: 2. 255.255.240.0
Explanation:
The /20 subnet mask corresponds to 255.255.240.0, which provides 20 bits for the network portion of the address.
263. What is the network address for the following IP address and subnet mask: 192.168.100.25/24?
192.168.100.0
192.168.100.1
192.168.100.24
192.168.100.25
Show me the answer
Answer: 1. 192.168.100.0
Explanation:
The network address is obtained by applying the subnet mask (255.255.255.0) to the IP address, resulting in 192.168.100.0.
264. What is the broadcast address for the following IP address and subnet mask: 192.168.100.25/22?
192.168.100.0
192.168.100.1
192.168.100.22
192.168.100.255
Show me the answer
Answer: 4. 192.168.100.255
Explanation:
The broadcast address for the subnet 192.168.100.0/22 is 192.168.100.255.
265. What does IPsec stand for?
Internet Protocol Security
Internet Protocol Secure
Internet Protocol Secured
Internet Protocol Securely
Show me the answer
Answer: 1. Internet Protocol Security
Explanation:
IPsec (Internet Protocol Security) is a suite of protocols used to secure IP communications by encrypting and authenticating packets.
266. What is IPsec used for?
Encryption and authentication of IP packets
Encryption and authentication of TCP packets
Encryption and authentication of UDP packets
Encryption and authentication of all packets
Show me the answer
Answer: 1. Encryption and authentication of IP packets
Explanation:
IPsec provides encryption and authentication for IP packets, ensuring secure communication over IP networks.
267. What is a VPN used for?
Virtual Private Networking
Virtual Public Networking
Virtual Protected Networking
Virtual Private Network
Show me the answer
Answer: 4. Virtual Private Network
Explanation:
A VPN (Virtual Private Network) creates a secure, encrypted connection over a public network, allowing users to access private networks remotely.
268. What does VPN provide?
Secure and private communication over a public network
Secure and public communication over a private network
Insecure and private communication over a public network
Insecure and public communication over a private network
Show me the answer
Answer: 1. Secure and private communication over a public network
Explanation:
VPNs encrypt data and provide a secure tunnel for communication over public networks like the internet.
269. What does IEEE 802.3 stand for?
Institute of Electrical and Electronics Engineers 802.3
Institute of Electronics and Electrical Engineers 802.3
Institute of Electrical Engineers 802.3
Institute of Electronics Engineers 802.3
Show me the answer
Answer: 1. Institute of Electrical and Electronics Engineers 802.3
Explanation:
IEEE 802.3 is the standard for Ethernet, developed by the Institute of Electrical and Electronics Engineers (IEEE).
270. What is IEEE 802.3 known as?
Ethernet
Token Bus
Token Ring
CSMA/CD
Show me the answer
Answer: 1. Ethernet
Explanation:
IEEE 802.3 is the standard for Ethernet, a widely used technology for wired local area networks (LANs).
271. What is the maximum data rate specified by the original IEEE 802.3 standard?
10 Mbps
100 Mbps
1000 Mbps
10 Gbps
Show me the answer
Answer: 1. 10 Mbps
Explanation:
The original IEEE 802.3 standard, also known as 10BASE-T, supports a maximum data rate of 10 Mbps.
272. What is the most common physical layer standard used by Ethernet networks?
10BaseT
100BaseT
1000BaseT
10000BaseT
Show me the answer
Answer: 3. 1000BaseT
Explanation:
1000BaseT, also known as Gigabit Ethernet, is the most common physical layer standard for modern Ethernet networks, supporting speeds of up to 1 Gbps.
273. What is a P2P network?
A centralized network where a single server handles all data transfers
A decentralized network where data transfers are handled by multiple nodes
A hierarchical network where data transfers are handled by a single node
A hybrid network where data transfers are handled by a combination of centralized and decentralized nodes
Show me the answer
Answer: 2. A decentralized network where data transfers are handled by multiple nodes
Explanation:
In a P2P (Peer-to-Peer) network, each node acts as both a client and a server, enabling decentralized data sharing without a central server.
274. What are some examples of P2P applications?
BitTorrent, Gnutella, eDonkey
Skype, Google Drive, Dropbox
Amazon Web Services, Microsoft Azure, Google Cloud
HTTP, FTP, SMTP
Show me the answer
Answer: 1. BitTorrent, Gnutella, eDonkey
Explanation:
BitTorrent, Gnutella, and eDonkey are examples of P2P applications used for file sharing and decentralized communication.
275. What are the benefits of using P2P applications?
Decentralized data transfers, reduced server load, lower costs
Centralized data transfers, increased server load, higher costs
Hierarchical data transfers, increased server load, lower costs
Hybrid data transfers, balanced server load, moderate costs
Show me the answer
Answer: 1. Decentralized data transfers, reduced server load, lower costs
Explanation:
P2P applications reduce reliance on central servers, distribute the load across multiple nodes, and lower infrastructure costs.
276. What are the drawbacks of using P2P applications?
Security concerns, copyright infringement, slow data transfers
High data transfers, secure communication, no copyright infringement
Fast data transfers, secure communication, no copyright infringement
Secure data transfers, no copyright infringement, fast communication
Show me the answer
Answer: 1. Security concerns, copyright infringement, slow data transfers
Explanation:
P2P networks are vulnerable to security risks, may facilitate illegal file sharing, and can suffer from slow transfer speeds due to reliance on peer nodes.
277. What is E-mail?
Electronic Message
Electromagnetic Message
Electronic Mailbox
Electromagnetic Mailbox
Show me the answer
Answer: 1. Electronic Message
Explanation:
E-mail (Electronic Mail) is a method of exchanging digital messages over the internet.
278. What is the most common protocol used for E-mail transmission?
SMTP
FTP
HTTP
HTTPS
Show me the answer
Answer: 1. SMTP
Explanation:
SMTP (Simple Mail Transfer Protocol) is the standard protocol for sending emails.
279. What is the most common format used for E-mail messages?
HTML
XML
Plain Text
Rich Text Format
Show me the answer
Answer: 3. Plain Text
Explanation:
Plain text is the most common format for email messages, though HTML and Rich Text Format are also used.
280. What is the purpose of an E-mail client?
To manage and send E-mails.
To manage and receive E-mails.
To manage and store E-mails.
To manage, send, and receive E-mails
Show me the answer
Answer: 4. To manage, send, and receive E-mails
Explanation:
An email client is a software application used to manage, send, and receive emails.
281. What is Multiplexing?
Combining multiple signals into a single signal.
Separating a single signal into multiple signals
Transmitting multiple signals simultaneously
Receiving multiple signals simultaneously
Show me the answer
Answer: 1. Combining multiple signals into a single signal.
Explanation:
Multiplexing combines multiple data streams into one signal for transmission over a shared medium.
282. What is De-multiplexing?
Combining multiple signals into a single signal
Separating a single signal into multiple signals
Transmitting multiple signals simultaneously
Receiving multiple signals simultaneously
Show me the answer
Answer: 2. Separating a single signal into multiple signals
Explanation:
De-multiplexing separates a combined signal into its original individual signals.
283. What is the purpose of Multiplexing in computer networking?
To reduce the number of communication channels required
To increase the number of communication channels required
To improve the quality of the communication channels
To reduce the speed of the communication channels
Show me the answer
Answer: 1. To reduce the number of communication channels required
Explanation:
Multiplexing allows multiple signals to share a single communication channel, reducing the need for additional channels.
284. What is the purpose of De-multiplexing in computer networking?
To reduce the number of communication channels required
To increase the number of communication channels required
To improve the quality of the communication channels
To reduce the speed of the communication channels
Show me the answer
Answer: 2. To increase the number of communication channels required
Explanation:
De-multiplexing separates a combined signal into multiple signals, enabling multiple communication channels.
285. Which layer 2 device is capable of filtering traffic based on the MAC addresses of the devices connected to it?
Hub
Switch
Router
Gateway
NIC
Show me the answer
Answer: 2. Switch
Explanation:
Switches operate at the Data Link Layer (Layer 2) and use MAC addresses to filter and forward traffic between devices.
286. Which layer 3 device is capable of connecting two networks together and forwarding packets between them?
Hub
Switch
Router
Gateway
NIC
Show me the answer
Answer: 3. Router
Explanation:
Routers operate at the Network Layer (Layer 3) and forward packets between different networks based on IP addresses.
287. Which of the following devices operates at the network layer of the OSI model and is capable of connecting two different types of networks together?
Hub
Switch
Router
Gateway
Modem
Show me the answer
Answer: 4. Gateway
Explanation:
Gateways operate at the Network Layer (Layer 3) and can connect different types of networks, such as a LAN to a WAN.
288. Which layer of the OSI model is responsible for routing and switching packets between networks?
Application layer
Transport layer
Network layer
Data link layer
Physical layer
Show me the answer
Answer: 3. Network layer
Explanation:
The Network Layer (Layer 3) is responsible for routing and forwarding packets between networks.
289. Which layer of the OSI model is responsible for providing error-free transmission of data?
Application layer
Transport layer
Network layer
Data-link layer
Physical layer
Show me the answer
Answer: 2. Transport layer
Explanation:
The Transport Layer (Layer 4) ensures reliable, error-free data transmission between devices.
290. In which network topology are all devices connected to a central hub or switch?
Bus topology
Ring topology
Star topology
Mesh topology
Show me the answer
Answer: 3. Star topology
Explanation:
In a star topology, all devices are connected to a central hub or switch, which manages communication between devices.
291. In which network topology are devices connected in a circular chain?
Bus topology
Ring topology
Star topology
Mesh topology
Show me the answer
Answer: 2. Ring topology
Explanation:
In a ring topology, devices are connected in a circular chain, with data traveling in one direction around the ring.
292. In which network topology are all devices connected to a single cable?
Bus topology
Ring topology
Star topology
Mesh topology
Show me the answer
Answer: 1. Bus topology
Explanation:
In a bus topology, all devices are connected to a single central cable, known as the bus.
293. In which network topology are devices connected to each other in a redundant manner to provide multiple paths for data to travel?
Bus topology
Ring topology
Star topology
Mesh topology
Show me the answer
Answer: 4. Mesh topology
Explanation:
In a mesh topology, devices are interconnected, providing multiple paths for data to travel, ensuring redundancy and fault tolerance.
294. In which network topology are devices connected to a central backbone cable?
Bus topology
Ring topology
Star topology
Mesh topology
Show me the answer
Answer: 1. Bus topology
Explanation:
In a bus topology, devices are connected to a central backbone cable, which serves as the main communication channel.
295. Which of the following routing protocols is used in small to medium-sized networks and is based on the hop count metric?
OSPF
BGP
EIGRP
RIP
Show me the answer
Answer: 4. RIP
Explanation:
RIP (Routing Information Protocol) is a distance-vector routing protocol that uses hop count as its metric and is suitable for small to medium-sized networks.
296. Which of the following protocols is used to translate between IP addresses and MAC addresses in a network?
ARP
DNS
ICMP
SNMP
Show me the answer
Answer: 1. ARP
Explanation:
ARP (Address Resolution Protocol) resolves IP addresses to MAC addresses, enabling communication between devices on a local network.
297. Which of the following protocols is used to provide secure communication over a network, especially over the internet?
SSL/TLS
IPSec
PPTP
L2TP
Show me the answer
Answer: 2. IPSec
Explanation:
IPSec (Internet Protocol Security) provides secure communication by encrypting and authenticating IP packets, commonly used in VPNs.
298. Which of the following network devices can inspect and filter traffic based on the content of the packets, and can be used to block malicious traffic?
Router
Firewall
Switch
Load balancer
Show me the answer
Answer: 2. Firewall
Explanation:
Firewalls inspect and filter network traffic based on predefined security rules, blocking malicious traffic and protecting the network.
299. Which of the following protocols is used to manage network devices and monitor network performance?
SNMP
SMTP
FTP
HTTP
Show me the answer
Answer: 1. SNMP
Explanation:
SNMP (Simple Network Management Protocol) is used to monitor and manage network devices, collect performance data, and generate alerts.
300. Which of the following network topologies provides the highest level of fault tolerance and redundancy, with every device connected to every other device in the network?
Mesh topology
Bus topology
Star topology
Ring topology
Show me the answer
Answer: 1. Mesh topology
Explanation:
In a mesh topology, every device is connected to every other device, providing multiple paths for data and ensuring high fault tolerance.
301. Which of the following network topologies is used primarily in the airline industry for flight reservation systems?
Bus topology
Star topology
Mesh topology
Tree topology
Show me the answer
Answer: 4. Tree topology
Explanation:
Tree topology is used in hierarchical systems like airline reservation systems, where data flows from a central root to multiple branches.
302. Which of the following network topologies is used in Ethernet networks and can operate at high speeds?
Bus topology
Star topology
Mesh topology
Ring topology
Show me the answer
Answer: 2. Star topology
Explanation:
Star topology is commonly used in Ethernet networks, where devices are connected to a central switch, enabling high-speed communication.
303. Which of the following network topologies is used in token ring networks, where each device is connected to the next in a circular chain?
Bus topology
Star topology
Mesh topology
Ring topology
Show me the answer
Answer: 4. Ring topology
Explanation:
Ring topology is used in token ring networks, where data travels in a circular chain from one device to the next.
304. Which of the following network topologies is a combination of two or more different network topologies?
Hybrid topology
Star topology
Mesh topology
Ring topology
Show me the answer
Answer: 1. Hybrid topology
Explanation:
Hybrid topology combines two or more different topologies, such as star and bus, to create a more flexible and scalable network.
305. Which of the following network topologies is considered the most reliable due to its redundancy and fault tolerance?
Bus topology
Ring topology
Star topology
Mesh topology
Show me the answer
Answer: 4. Mesh topology
Explanation:
Mesh topology provides the highest level of redundancy and fault tolerance, as every device is connected to every other device, ensuring multiple paths for data.
