CS 160 FINAL EXAM | QUESTIONS AND ANSWERS | VERIFIED AND
WELL DETAILED ANSWERS | ALREADY GRADED A+ | LATEST
EXAM UPDATE
Why is the language of a computer binary? - CORRECT ANSWERS - It's
easier, cheaper, and more reliable to build machines and devices that only have
to distinguish between binary states.
What is the 4-bit binary number for the decimal number Eleven (11)? -
CORRECT ANSWERS - 1011
What is the minimum number of bits you would need to encode the 26 letters of
the alphabet plus a space - a total of 27 characters? - CORRECT ANSWERS -
5 bits
Which components in the list would be considered "input" devices? -
CORRECT ANSWERS - keyboard, mouse, touch screen
Without a processor, a computer cannot run software. - CORRECT
ANSWERS - True
ASCII is a character-encoding scheme that uses a numeric value to represent
each character. For example, the uppercase letter "A" is represented by the
decimal (base 10) value 65.
ASCII values are stored as binary numbers in the computer. Which uppercase
letter is represented with binary 0100 1011 ? - CORRECT ANSWERS - K
,PCC uses an 8 bit number to represent the each student's unique pccID. If
enrollment doubles, which option below would be the smallest change
necessary to the way pccID is stored to ensure each incoming student receives a
unique ID? - CORRECT ANSWERS - Add a bit to pccID to double the
number of IDs that the database can represent.
Number systems with different bases such as binary (base-2) and decimal (base-
10) are all used to view and represent digital data.
Which of the following is NOT true about representing digital data? -
CORRECT ANSWERS - Some large numbers cannot be represented in binary
and can only be represented in decimal.
Which of the following RGB values represent the color below? (Magenta) -
CORRECT ANSWERS - 255, 0, 255
A computer program uses 4 bits to represent nonnegative integers. Which of the
following statements describe a possible result when the program uses this
number representation?
I. The operation 4 + 8 will result in an overflow error.
II. The operation 7 + 10 will result in an overflow error.
III. The operation 12 + 3 will result in an overflow error. - CORRECT
ANSWERS - II only
Which of the following explains a benefit of using open standards and protocols
for Internet communication? - CORRECT ANSWERS - Open standards and
protocols allow different manufacturers and developers to build hardware and
software that can communicate with hardware and software on the rest of the
network.
Which of the following is a true statement about Internet communication? -
CORRECT ANSWERS - Every device connected to the Internet is assigned an
Internet protocol (IP) address.
, A computer program uses 5 bits to represent nonnegative integers. Which of the
following statements describe a possible result when the program uses this
number representation?
I. The operation 10 + 8 will result in an overflow error.
II. The operation 16 * 2 will result in an overflow error.
III. The operation 20 + 18 will result in an overflow error. - CORRECT
ANSWERS - II and III only
The following figures represent different ways of configuring a network of
physically linked computers labeled P, Q, R, and S. A line between two
computers indicates that the computers can communicate directly with each
other. In which configuration is it NOT possible to have redundant routing
between computers P and S? - CORRECT ANSWERS - The one that has a
single path going from P to R to Q to S
Which of the following statements are true about routers and routing on the
Internet. Choose two answers. - CORRECT ANSWERS - Routers act
independently and route packets as they see fit.
A packet traveling between two computers on the Internet may be rerouted
many times along the way or even lost or "dropped".
Convert decimal 23 to an 8 bit binary number. - CORRECT ANSWERS -
00010111
Which of the following statements accurately describe the hierarchy of the Web
pages example.org and about.example.org ? Select TWO answers. -
CORRECT ANSWERS - The Web page about.example.org is a subdomain of
example.org
The Web page example.org is a domain under the top-level domain .org
WELL DETAILED ANSWERS | ALREADY GRADED A+ | LATEST
EXAM UPDATE
Why is the language of a computer binary? - CORRECT ANSWERS - It's
easier, cheaper, and more reliable to build machines and devices that only have
to distinguish between binary states.
What is the 4-bit binary number for the decimal number Eleven (11)? -
CORRECT ANSWERS - 1011
What is the minimum number of bits you would need to encode the 26 letters of
the alphabet plus a space - a total of 27 characters? - CORRECT ANSWERS -
5 bits
Which components in the list would be considered "input" devices? -
CORRECT ANSWERS - keyboard, mouse, touch screen
Without a processor, a computer cannot run software. - CORRECT
ANSWERS - True
ASCII is a character-encoding scheme that uses a numeric value to represent
each character. For example, the uppercase letter "A" is represented by the
decimal (base 10) value 65.
ASCII values are stored as binary numbers in the computer. Which uppercase
letter is represented with binary 0100 1011 ? - CORRECT ANSWERS - K
,PCC uses an 8 bit number to represent the each student's unique pccID. If
enrollment doubles, which option below would be the smallest change
necessary to the way pccID is stored to ensure each incoming student receives a
unique ID? - CORRECT ANSWERS - Add a bit to pccID to double the
number of IDs that the database can represent.
Number systems with different bases such as binary (base-2) and decimal (base-
10) are all used to view and represent digital data.
Which of the following is NOT true about representing digital data? -
CORRECT ANSWERS - Some large numbers cannot be represented in binary
and can only be represented in decimal.
Which of the following RGB values represent the color below? (Magenta) -
CORRECT ANSWERS - 255, 0, 255
A computer program uses 4 bits to represent nonnegative integers. Which of the
following statements describe a possible result when the program uses this
number representation?
I. The operation 4 + 8 will result in an overflow error.
II. The operation 7 + 10 will result in an overflow error.
III. The operation 12 + 3 will result in an overflow error. - CORRECT
ANSWERS - II only
Which of the following explains a benefit of using open standards and protocols
for Internet communication? - CORRECT ANSWERS - Open standards and
protocols allow different manufacturers and developers to build hardware and
software that can communicate with hardware and software on the rest of the
network.
Which of the following is a true statement about Internet communication? -
CORRECT ANSWERS - Every device connected to the Internet is assigned an
Internet protocol (IP) address.
, A computer program uses 5 bits to represent nonnegative integers. Which of the
following statements describe a possible result when the program uses this
number representation?
I. The operation 10 + 8 will result in an overflow error.
II. The operation 16 * 2 will result in an overflow error.
III. The operation 20 + 18 will result in an overflow error. - CORRECT
ANSWERS - II and III only
The following figures represent different ways of configuring a network of
physically linked computers labeled P, Q, R, and S. A line between two
computers indicates that the computers can communicate directly with each
other. In which configuration is it NOT possible to have redundant routing
between computers P and S? - CORRECT ANSWERS - The one that has a
single path going from P to R to Q to S
Which of the following statements are true about routers and routing on the
Internet. Choose two answers. - CORRECT ANSWERS - Routers act
independently and route packets as they see fit.
A packet traveling between two computers on the Internet may be rerouted
many times along the way or even lost or "dropped".
Convert decimal 23 to an 8 bit binary number. - CORRECT ANSWERS -
00010111
Which of the following statements accurately describe the hierarchy of the Web
pages example.org and about.example.org ? Select TWO answers. -
CORRECT ANSWERS - The Web page about.example.org is a subdomain of
example.org
The Web page example.org is a domain under the top-level domain .org
