CS 160 Final Exam NEWEST 2025 COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
Why is the language of a computer binary? - CORRECT ANSWER- 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 ANSWER- 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 ANSWER- 5 bits
Which components in the list would be considered "input" devices? - CORRECT ANSWER- keyboard,
mouse, touch screen
Without a processor, a computer cannot run software. - CORRECT ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- II only
Which of the following explains a benefit of using open standards and protocols for Internet
communication? - CORRECT ANSWER- 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 ANSWER-
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 ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- 00010111
Which of the following statements accurately describe the hierarchy of the Web pages
example.org and about.example.org ? Select TWO answers. - CORRECT ANSWER- 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
Which of the following allows users to refer to Web sites using names, such as example.com,
rather than numbers, such as 93.184.216.34 ? - CORRECT ANSWER- The domain name system (DNS)
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
Why is the language of a computer binary? - CORRECT ANSWER- 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 ANSWER- 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 ANSWER- 5 bits
Which components in the list would be considered "input" devices? - CORRECT ANSWER- keyboard,
mouse, touch screen
Without a processor, a computer cannot run software. - CORRECT ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- II only
Which of the following explains a benefit of using open standards and protocols for Internet
communication? - CORRECT ANSWER- 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 ANSWER-
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 ANSWER- 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 ANSWER- 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 ANSWER- 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 ANSWER- 00010111
Which of the following statements accurately describe the hierarchy of the Web pages
example.org and about.example.org ? Select TWO answers. - CORRECT ANSWER- 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
Which of the following allows users to refer to Web sites using names, such as example.com,
rather than numbers, such as 93.184.216.34 ? - CORRECT ANSWER- The domain name system (DNS)
