Chapter 5: Operating Systems Quiz

Question 1

• Nearly all computer data is stored and retrieved as files.
• Answer: a. True

Question 2

• Random access files are not the same as relative access files.
• Answer: b. False

Question 3

• A port is a connector at the end of a bus for device connection.
• Answer: a. True

Question 4

• Operating system services commonly include file retrieval, storage, and manipulation.
• Answer: a. True

Question 5

• Operating system services often include user input/output (I/O) services.
• Answer: a. True

Question 6

• Even simple appliances can have an operating system.
• Answer: a. True

Question 7

• The operating system manages file system access and support.
• Answer: a. True

Question 8

• The operating system provides I/O support for all programs.
• Answer: a. True

Question 9

• Converting analog data to digital form results in some data loss.
• Answer: a. True

Question 10

• The motherboard wiring connects peripherals, I/O, and CPU/memory.
• This arrangement is known as a bus.
• Answer: c. Bus

Question 11

• A channel that transmits in one direction is a simplex channel, not duplex.
• Answer: b. False

Question 12

• A full-duplex channel transmits in both directions simultaneously, not one at a time.
• Answer: b. False

Question 13

• Channels carrying signals in both directions simultaneously are called full-duplex or bidirectional channels, not double-sided.
• Answer: a. True

Question 14

• In an active hub, all connections are simply tied together; no signal modification or operation occurs within the hub.
• Answer: a. True

Question 15

• An intranet is an organizational network primarily based on web services.
• Answer: a. True

Question 16

• Ethernet is a data link layer implementation.
• Answer: a. True

Question 17

• Port numbers can be modified by applications.
• Answer: a. True

Question 18

• Messages are divided into smaller units called packets, not bunches.
• Answer: b. False

Question 19

• Using packets improves communication efficiency and simplifies operations.
• Answer: a. True

Question 20

• Channels can consist of multiple links.
• Answer: a. True

Question 21

• Bit rate and bandwidth are not always used interchangeably.
• Answer: b. False

Question 22

• Packet switching is equivalent to datagram switching.
• Answer: a. True

Question 23

• Multimedia input devices often include video and audio capabilities.
• Answer: a. True

Question 24

• Client and server computers in client-server systems are typically separate.
• Answer: a. True

Question 25

• Cluster computers should be located close together for optimal performance.
• Answer: a. True

Question 26

• Clustering combines multiple computer systems to increase overall computing power.
• Answer: b. True

Question 27

• Time-division multiplexing (TDM) is commonly used with digital signals.
• Answer: a. Time division multiplexing (TDM)

Question 28

• Blade servers, often in a rack, are computer systems on a board.
• Answer: a. Blade servers

Question 29

• Fiber optic cables have low attenuation and are not vulnerable to most noise.
• Answer: b. It is vulnerable to most forms of noise.

Question 30

• Hertz (Hz) is a unit of frequency.
• Answer: d. Frequency

Question 31

• Thunderbolt supports data transfer rates up to 10 gigabits per second (Gbps) in one direction, so the correct answer is not amongst the provided options
• Answer: None of the above

Question 32

• Device drivers are software that manage device connections.
• Answer: b. Device driver

Question 33

• Printed circuit boards, often called motherboards, house major components.
• Answer: b. Motherboard

Question 34

• Internet Control Message Protocol (ICMP) messages are created for failures occurring in the network layer.
• Answer: b. Network layer

Question 35

• Data is broken down into smaller units called packets to improve efficiency and management.
• Answer: b. Packets

Question 36

• Communication channel segments are called links.
• Answer: a. Links

Question 37

• The TCP/IP suite of protocols is a set of standard communication protocols.
• Answer: a. TCP/IP and UDP

Question 38

• The process of establishing a TCP connection involves a back-and-forth exchange using control packets and acknowledgments.
• This is called handshaking
• Answer: c. Handshaking

Question 39

• Domain Name System (DNS) translates domain names to IP addresses.
• Answer: d. DHCP

Question 40

• Protecting data from unauthorized modification is known as data integrity or data security
• Answer: a. Integrity

Question 41

• Capturing network data packets is called packet sniffing.
• Answer: a. Packet sniffing

Question 42

• Dialogue between applications/processes on the OSI model is known as a session.
• Answer: a. Session

Question 43

• In cluster systems to improve load balancing, a share-nothing model is used.
• Answer: a. Share Nothing model

Question 44

• Channel bandwidth control to prevent signal interference is called filtering.
• Answer: d. Filtering

Question 45

• The operating system manages programs, processes, and hardware resources.
• Answer: d. All of the above

Question 46

• When a program finishes, the operating system releases the associated memory.
• Answer: a. Memory management

Question 47

• System information and user management services often include available disk space, memory, and users.
• Answer: d. System Status Information and User Administration

Question 48

• Mounting and unmounting devices typically falls under Disk and other I/O Device Services.
• Answer: b. Disk and other I/O Device Services

Question 49

• Programs handle file operations, not users.
• Answer: d. All of the above

Question 50

• Data files are retrieved using both sequential and random access methods.
• Answer: c. Both (a) and (b)