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WorksheetsBCS Systems & Architecture Quiz 2
Total questions: 24
Worksheet time: 48mins
Processors have a speed measured in
Hertz
Bits
Bytes
Seconds
What part of the CPU is being described?
Carries out arithmetic operations and performs logical comparisons.
ALU
Control Unit
Cache
Clock
What does volatile mean?
Temporarily stores data until the power is removed.
Permanently stores data forever even when the power is removed.
The amount of electricity being passed through the CPU.
The number of instructions of which the CPU can handle.
A ______ is a collection of wires that carry signals or communications between the various components of the computer system.
Clock
Registers
Bus
Cache
A technician has 2GB of data that needs to be backed up from a customer's Windows 7 computer. Which of the following storage media should the technician use?
DVD-RW
CD-RW
DVD-ROM
CD-ROM
Which is not a layer in the TCP/IP model?
Application
Tranmission
Internet
Network
Which are not one of the application layer protocols?
DNS
FTP
SMTP
FNP
Which of the TCP/IP model layers is responsible for breaking down the message into packets?
Network
Application
Transport
Internet
What is TCP used for?
To send information across the internet in packets
To ensure that information is sent to the correct computer
To send mail across the internet
To transmit webpages across the internet
Which of these are mail protocols?
SMTP and POP
TCP and FTP
FTP and SMTP
POP and IP
UDP is called a ________________transport protocol.
connectionless, reliable
connection-oriented, unreliable
connectionless, unreliable
none of the above
What is the difference between SCSI and SAS?
SAS uses a wide ribbon cable
SAS uses a SATA serial drive port
SAS is much slower than SCSI
SAS has a lower device limit than SCSI
What is the best description of SCSI technology?
Allows devices to communicate and transfer data to and from RAM without CPU intervention
Allows a device to hold small amounts of data temporarily
Access method that uses fiber-optic cable as the network media
Allows for the connection of multiple devices to a single controller
Which RAID level uses disk striping?
RAID 0
RAID 1
RAID 2
RAID 6
Which RAID level provides disk mirroring?
RAID 1
RAID 3
RAID 4
RAID 50
RAID 5
Striping only
striping with parity
mirroring only
striping and mirroring
1. When implementing ______________________, a stripe set breaks data into units and stores the units across a series of disks by reading and writing to all disks simultaneously. This provides an increase in performance but it does not provide fault tolerance. A failure of one disk in the set means all data is lost.
RAID 0
RAID 5
RAID 1
RAID 10
1. A ___________________________ volume combines disk striping across multiple disks with parity for data redundancy. Parity information is stored on each disk. If a single disk fails, its data can be recovered using the parity information stored on the remaining disks. This provides fault tolerance for a single disk failure and provides an increase in performance.
RAID 5
RAID 0
RAID 10
RAID 1
