Chapter 4

The Internet Layer of TCP/IP is responsible for which of the following? A) providing communication with the application by acknowledging and sequencing the packets to and from the application B) addressing, packaging, and routing messages C) providing a variety of applications with the ability to access the services of the lower layers D) placing packets on and receiving them from the network medium

B) addressing, packaging, and routing messages

Which of the following help convert URLs into IP addresses? A) Web servers B) root servers C) DNS servers D) client servers

C) dns servers

An IPv4 address is expressed as a: A) 4-bit number that appears as a series of four separate numbers separated by semicolons. B) 128-bit number that appears as a series of four separate numbers separated by periods. C) 64-bit number that appears as a series of four separate numbers separated by semicolons. D) 32-bit number that appears as a series of four separate numbers separated by periods.

D) 32-bit number that appears as a series of four separate numbers separated by periods.

The process of slicing digital messages into containers, sending them along different communication paths as they become available, and reassembling them at the destination point is called: A) the Hypertext Transfer Protocol. B) endpoint cutting. C) the Internet Protocol. D) packet switching.

D) packet switching

The major technologies used with wireless local area networks are: A) Wi-Fi and Bluetooth. B) WiMax and 3G. C) Bluetooth and 3G. D) Wi-Fi and WiMax.

a) wifi and bluetooth

All of the following are true about iPhone apps except: A) over 100 billion have been downloaded. B) they are made for Android KitKat devices. C) they are distributed through Apple's App Store. D) Apple's goal of offering apps is to increase sales of iPhones, iPads, and iPods.

b

Which of the following is the primary communications protocol for the Internet? A) FTP B) TCP/IP C) Telnet D) TLS

b) tcp/ip

Which of the following are specialized computers that interconnect the thousands of computers that make up the Internet in order to transmit message parcels along available communication paths and on to their destinations? A) Internet Layer of TCP/IP B) IP clients C) routers D) Web hosts

c) routers

Which of the following is a set of rules for transferring data? A) an IP address B) a packet C) a router D) a protocol

d) a protocol

The ________ allows a natural language expression, such as Google.com to represent a numeric IP address. A) Internet Layer of TCP/IP B) TCP/IP C) packet switching system D) domain name system

d) domain name system