31) For communications equipment, k stands for __.
A) 1000
B) 1024
C) 512
D) 500
32) __ has speeds that range between 500 Kbps and 1.7 Mbps.
A) Wireless WAN
B) DSL modem to ISP
C) Cable modem to ISP
D) Wireless LAN
33) Which of the following is a sophisticated protocol that enables several devices to use the same frequency?
A) Wireless WAN
B) DSL modem to ISP
C) Cable modem to ISP
D) Wireless LAN
34) The protocols used on the Internet are arranged according to a structure known as the __ protocol architecture.
A) FTP
B) SMTP
C) HTTP
D) TCP/IP
35) Which of the following protocols guarantees secure data transmission?
A) http
B) ftp
C) https
D) smtp
36) Which of the following TCP/IP application-layer protocols is used for email transmissions?
A) ftp
B) https
C) smtp
D) IP
37) Which of the following TCP/IP application-layer protocols is used to move files over the Internet and to maintain Web sites?
A) ftp
B) smtp
C) https
D) http
38) A(n) __ is a number that identifies a particular device.
A) domain
B) IP address
C) hyperlink
D) href
39) The organization responsible for assigning public IP addresses is called __.
A) CERN
B) IEEE
C) ICANN
D) ISO
40) Which of the following is the most common format for IP addresses?
A) IPv4
B) TCP
C) IPv6
D) HTTP
The Correct Answer and Explanation is :
Here are the correct answers to the questions along with explanations:
31) For communications equipment, k stands for:
A) 1000
Explanation:
In telecommunications and computing, “k” typically represents 1000 (the metric prefix kilo). For example, a 1 kbps connection is 1000 bits per second.
32) __ has speeds that range between 500 Kbps and 1.7 Mbps:
B) DSL modem to ISP
Explanation:
DSL (Digital Subscriber Line) modems typically provide internet speeds ranging from a few hundred Kbps to several Mbps, depending on the distance to the ISP and the specific DSL technology (e.g., ADSL, VDSL).
33) Which of the following is a sophisticated protocol that enables several devices to use the same frequency?
D) Wireless LAN
Explanation:
Wireless LANs use protocols like IEEE 802.11 (Wi-Fi), which include sophisticated mechanisms (like OFDM and CSMA/CA) to allow multiple devices to share the same frequency band without interference.
34) The protocols used on the Internet are arranged according to a structure known as the __ protocol architecture:
D) TCP/IP
Explanation:
The TCP/IP protocol architecture is a layered model that underpins the Internet, including layers for transport (TCP) and Internet addressing (IP).
35) Which of the following protocols guarantees secure data transmission?
C) https
Explanation:
HTTPS (HyperText Transfer Protocol Secure) ensures secure data transmission by using SSL/TLS encryption, protecting information from interception or tampering.
36) Which of the following TCP/IP application-layer protocols is used for email transmissions?
C) smtp
Explanation:
SMTP (Simple Mail Transfer Protocol) is the standard protocol for sending emails. It works at the application layer of the TCP/IP model.
37) Which of the following TCP/IP application-layer protocols is used to move files over the Internet and to maintain Web sites?
A) ftp
Explanation:
FTP (File Transfer Protocol) is used for transferring files over a network and is often used to upload or maintain website files.
38) A(n) __ is a number that identifies a particular device:
B) IP address
Explanation:
An IP address uniquely identifies devices on a network, enabling communication between them.
39) The organization responsible for assigning public IP addresses is called:
C) ICANN
Explanation:
ICANN (Internet Corporation for Assigned Names and Numbers) manages the allocation of IP addresses and domain names globally.
40) Which of the following is the most common format for IP addresses?
A) IPv4
Explanation:
IPv4 is the most widely used IP address format, consisting of four decimal numbers separated by dots (e.g., 192.168.1.1). IPv6 is newer but less common.