Which of the following is not a primary function of a communication system?
a) Transmission
b) Reception
c) Processing
d) Storage
Answer: d) Storage
In a communication system, modulation is used for:
a) Amplifying the signal
b) Multiplying the signal
c) Converting the signal to a higher frequency
d) Converting the signal to a different form
Answer: c) Converting the signal to a higher frequency
What does the acronym “LAN” stand for?
a) Local Access Network
b) Local Area Network
c) Long Access Network
d) Long Area Network
Answer: b) Local Area Network
Which of the following is not a commonly used network topology?
a) Bus
b) Ring
c) Star
d) Square
Answer: d) Square
Which layer of the OSI model is responsible for error detection and correction?
a) Physical layer
b) Data link layer
c) Network layer
d) Transport layer
Answer: b) Data link layer
What is the purpose of a router in a computer network?
a) To connect devices within the same network
b) To connect devices in different networks
c) To amplify the network signal
d) To regulate the flow of data packets
Answer: b) To connect devices in different networks
Which of the following is an example of a wireless communication technology?
a) Ethernet
b) Bluetooth
c) USB
d) Fiber optic
Answer: b) Bluetooth
Which transmission medium is typically used for long-distance communication?
a) Coaxial cable
b) Twisted-pair cable
c) Fiber optic cable
d) Wireless radio waves
Answer: c) Fiber optic cable
Which of the following is not a type of multiplexing technique?
a) Time Division Multiplexing (TDM)
b) Frequency Division Multiplexing (FDM)
c) Code Division Multiplexing (CDM)
d) Amplitude Division Multiplexing (ADM)
Answer: d) Amplitude Division Multiplexing (ADM)
What is the purpose of a MAC address in a network?
a) To identify a specific network interface
b) To determine the network’s IP address
c) To encrypt network traffic
d) To establish a secure connection
Answer: a) To identify a specific network interface
Which of the following protocols is used for sending email over the Internet?
a) FTP
b) SMTP
c) HTTP
d) POP
Answer: b) SMTP
What is the maximum data transmission rate for a USB 3.0 connection?
a) 480 Mbps
b) 1 Gbps
c) 5 Gbps
d) 10 Gbps
Answer: c) 5 Gbps
Which of the following is a reliable transport protocol used for transmitting web pages?
a) HTTP
b) FTP
c) TCP
d) UDP
Answer: c) TCP
Which network device operates at the Data Link layer of the OSI model?
a) Router
b) Hub
c) Switch
d) Bridge
Answer: c) Switch
Which of the following is not a wireless communication standard?
a) Wi-Fi
b) Bluetooth
c) Ethernet
d) NFC
Answer: c) Ethernet
What is the range of IPv4 addresses?
a) 0.0.0.0 to 255.255.255.255
b) 0.0.0.0 to 127.0.0.1
c) 0.0.0.0 to 10.0.0.255
d) 0.0.0.0 to 192.168.0.255
Answer: a) 0.0.0.0 to 255.255.255.255
Which network topology requires the highest amount of cabling?
a) Bus
b) Star
c) Ring
d) Mesh
Answer: d) Mesh
What is the purpose of a firewall in a network?
a) To block unwanted network traffic
b) To enhance network speed
c) To encrypt network data
d) To connect devices in a network
Answer: a) To block unwanted network traffic
Which of the following protocols is used for secure communication over the web?
a) HTTP
b) FTP
c) HTTPS
d) SMTP
Answer: c) HTTPS
What is the purpose of an IP address in a network?
a) To identify a specific network device
b) To establish a Wi-Fi connection
c) To encrypt network traffic
d) To connect to a website
Answer: a) To identify a specific network device
Which of the following is an example of a physical transmission medium?
a) Ethernet cable
b) TCP/IP protocol
c) HTTP protocol
d) SMTP protocol
Answer: a) Ethernet cable
Which network layer is responsible for logical addressing and routing?
a) Physical layer
b) Data link layer
c) Network layer
d) Transport layer
Answer: c) Network layer
What does the acronym “WAN” stand for?
a) Wide Access Network
b) Wireless Area Network
c) Wide Area Network
d) Wired Access Network
Answer: c) Wide Area Network
Which of the following is an example of a broadcast communication?
a) Email
b) Phone call
c) Video conference
d) Radio transmission
Answer: d) Radio transmission
What is the purpose of DNS in a network?
a) To convert domain names to IP addresses
b) To secure network communication
c) To establish a Wi-Fi connection
d) To route network traffic
Answer: a) To convert domain names to IP addresses
Which of the following is a data link protocol used for wired Ethernet networks?
a) IP
b) TCP
c) UDP
d) Ethernet
Answer: d) Ethernet
What is the function of an access point in a Wi-Fi network?
a) To connect devices within the same network
b) To connect devices in different networks
c) To amplify the Wi-Fi signal
d) To regulate the flow of data packets
Answer: a) To connect devices within the same network
Which of the following is not a common network protocol?
a) TCP
b) IPX
c) SMTP
d) USB
Answer: d) USB
What is the purpose of a repeater in a network?
a) To connect devices in different networks
b) To amplify the network signal
c) To encrypt network traffic
d) To establish a secure connection
Answer: b) To amplify the network signal
Which of the following is not a characteristic of a digital signal?
a) Continuous
b) Discrete
c) Binary
d) Time-based
Answer: a) Continuous
Which layer of the OSI model is responsible for routing and path determination?
a) Physical layer
b) Data link layer
c) Network layer
d) Transport layer
Answer: c) Network layer
What is the purpose of a gateway in a network?
a) To connect devices within the same network
b) To connect devices in different networks
c) To amplify the network signal
d) To regulate the flow of data packets
Answer: b) To connect devices in different networks
Which of the following is a commonly used network protocol for file transfer?
a) HTTP
b) FTP
c) SMTP
d) POP
Answer: b) FTP
Which network device operates at the Physical layer of the OSI model?
a) Router
b) Hub
c) Switch
d) Bridge
Answer: b) Hub
What does the acronym “ISP” stand for?
a) Internet Service Provider
b) International System Protocol
c) Internet Security Protocol
d) Internet Storage Protocol
Answer: a) Internet Service Provider
Which of the following is an example of a wired communication technology?
a) Wi-Fi
b) Bluetooth
c) Ethernet
d) NFC
Answer: c) Ethernet
Which of the following is a network protocol used for retrieving email from a mail server?
a) FTP
b) SMTP
c) HTTP
d) POP
Answer: d) POP
What is the purpose of a subnet mask in a network?
a) To identify a specific network interface
b) To determine the network’s IP address
c) To encrypt network traffic
d) To establish a secure connection
Answer: b) To determine the network’s IP address
Which of the following is not a characteristic of a wireless network?
a) Mobility
b) Limited range
c) High bandwidth
d) Susceptible to interference
Answer: c) High bandwidth
Which layer of the OSI model is responsible for establishing and terminating connections between applications?
a) Physical layer
b) Data link layer
c) Transport layer
d) Application layer
Answer: d) Application layer
What is the purpose of a proxy server in a network?
a) To connect devices within the same network
b) To connect devices in different networks
c) To enhance network speed
d) To control and filter internet traffic
Answer: d) To control and filter internet traffic
Which of the following is a commonly used network protocol for web browsing?
a) HTTP
b) FTP
c) SMTP
d) POP
Answer: a) HTTP
What is the maximum data transmission rate for a Gigabit Ethernet connection?
a) 100 Mbps
b) 1 Gbps
c) 10 Gbps
d) 100 Gbps
Answer: b) 1 Gbps
Which of the following is a network protocol used for real-time voice and video communication?
a) HTTP
b) FTP
c) SMTP
d) SIP
Answer: d) SIP
What is the purpose of NAT in a network?
a) To convert domain names to IP addresses
b) To secure network communication
c) To establish a Wi-Fi connection
d) To translate IP addresses between different networks
Answer: d) To translate IP addresses between different networks
Which network topology provides the highest level of fault tolerance?
a) Bus
b) Ring
c) Star
d) Mesh
Answer: d) Mesh
What is the purpose of a network interface card (NIC)?
a) To connect devices within the same network
b) To connect devices in different networks
c) To amplify the network signal
d) To enable a device to connect to a network
Answer: d) To enable a device to connect to a network
Which of the following is an example of a wireless communication technology used for short-range communication between devices?
a) Ethernet
b) Bluetooth
c) USB
d) Fiber optic
Answer: b) Bluetooth
What is the purpose of DHCP in a network?
a) To convert domain names to IP addresses
b) To secure network communication
c) To assign IP addresses to devices on the network
d) To establish a Wi-Fi connection
Answer: c) To assign IP addresses to devices on the network
Which of the following is a commonly used network protocol for secure remote login?
a) HTTP
b) FTP
c) SSH
d) SMTP
Answer: c) SSH
What is the purpose of a network switch?
a) To connect devices in different networks
b) To amplify the network signal
c) To regulate the flow of data packets
d) To connect devices within the same network
Answer: d) To connect devices within the same network
Which of the following is a commonly used network protocol for transferring files between a client and a server?
a) HTTP
b) FTP
c) SMTP
d) POP
Answer: b) FTP
What is the purpose of a default gateway in a network?
a) To connect devices within the same network
b) To connect devices in different networks
c) To amplify the network signal
d) To regulate the flow of data packets
Answer: b) To connect devices in different networks
Which of the following is not a commonly used network protocol?
a) TCP
b) IPX
c) SMTP
d) USB
Answer: d) USB
What is the purpose of a modem in a network?
a) To connect devices within the same network
b) To establish a Wi-Fi connection
c) To convert digital signals to analog signals for transmission over telephone lines
d) To regulate the flow of data packets
Answer: c) To convert digital signals to analog signals for transmission over telephone lines
Which of the following is an example of a network protocol used for transferring hypertext documents?
a) HTTP
b) FTP
c) SMTP
d) POP
Answer: a) HTTP
What is the purpose of a network bridge?
a) To connect devices in different networks
b) To amplify the network signal
c) To regulate the flow of data packets
d) To connect devices within the same network
Answer: d) To connect devices within the same network
Which of the following is a commonly used network protocol for sending and receiving emails?
a) HTTP
b) FTP
c) SMTP
d) POP
Answer: c) SMTP
What is the purpose of a VPN in a network?
a) To convert domain names to IP addresses
b) To secure network communication
c) To establish a Wi-Fi connection
d) To connect devices in different networks
Answer: b) To secure network communication
Which network device operates at the Transport layer of the OSI model?
a) Router
b) Hub
c) Switch
d) Firewall
Answer: d) Firewall
