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web.groovymark@gmail.com
- November 19, 2024
Question 41
What command is used on a Cisco router to display information about the router’s current interfaces and their IP addresses?
a) show ip interface brief
b) show running-config
c) show ip route
d) show version
Correct Answer: a) show ip interface brief
Explanation: The show ip interface brief command on a Cisco router displays information about the router’s current interfaces and their IP addresses.
Question 42
Which wireless technology is commonly used for short-range communication between devices, such as smartphones and wireless headsets?
a) Bluetooth
b) Wi-Fi
c) Zigbee
d) NFC
Correct Answer: a) Bluetooth
Explanation: Bluetooth is commonly used for short-range communication between devices, such as smartphones, wireless headsets, and other peripherals.
Question 43
Which OSI layer is responsible for ensuring that data sent between network devices is error-free and properly sequenced?
a) Application layer
b) Network layer
c) Transport layer
d) Data Link layer
Correct Answer: c) Transport layer
Explanation: The Transport layer (Layer 4) is responsible for ensuring that data sent between network devices is error-free, properly sequenced, and delivered reliably.
Question 44
Which command can be used to view the routing table on a Cisco router?
a) show running-config
b) show ip route
c) show interfaces
d) show startup-config
Correct Answer: b) show ip route
Explanation: The show ip route command displays the routing table on a Cisco router, showing the routes available for network traffic.
Question 45
Which OSI layer is responsible for providing end-to-end communication and reliable data transfer between devices?
a) Data Link layer
b) Network layer
c) Transport layer
d) Application layer
Correct Answer: c) Transport layer
Explanation: The Transport layer (Layer 4) is responsible for providing end-to-end communication, reliable data transfer, and flow control between devices.
Question 46
Which of the following protocols is used for email transmission between mail servers?
a) FTP
b) SMTP
c) HTTP
d) DNS
Correct Answer: b) SMTP
Explanation: SMTP (Simple Mail Transfer Protocol) is used for transmitting email between mail servers.
Question 47
What is the primary function of the Frame Check Sequence (FCS) field in an Ethernet frame?
a) To indicate the size of the frame
b) To detect errors in the transmitted frame
c) To define the start of the frame
d) To encapsulate the payload
Correct Answer: b) To detect errors in the transmitted frame
Explanation: The Frame Check Sequence (FCS) field in an Ethernet frame is used to detect errors that may have occurred during transmission.
Question 48
Which protocol uses TCP port 25 for email transmission?
a) SMTP
b) FTP
c) POP3
d) IMAP
Correct Answer: a) SMTP
Explanation: SMTP (Simple Mail Transfer Protocol) uses TCP port 25 for email transmission between mail servers.
Question 49
What command is used to configure an IP address on a Cisco router interface?
a) ip address
b) set ip address
c) config ip
d) assign ip
Correct Answer: a) ip address
Explanation: The ip address command is used to configure an IP address on a Cisco router interface.
Question 50
Which wireless networking standard operates in both the 2.4 GHz and 5 GHz frequency bands?
a) 802.11a
b) 802.11b
c) 802.11g
d) 802.11n
Correct Answer: d) 802.11n
Explanation: The 802.11n standard operates in both the 2.4 GHz and 5 GHz frequency bands, providing greater flexibility for wireless networking.
