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IB CS Review Flashcards | StudBud
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IB CS Review
IB CS Review
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1
An Efficiency ("Big O") of an algorithm represents
The amount of data the algorithm can process
The amount of time it takes to code the algorithm
The approximate number of operations required as a function of data size
The size of the data file read by the program
2
Debbie received a message but the message was also intercepted by a third party. This is an example of _____
Lack of Authentication
Loss of Data Confidentiality
A Poor Data Transmission Protocol
Loss of Data Integrity
3
Which animal kills the most humans in Africa every year
Lion
Nile Crocodile
Hippopotamus
Cape Buffalo
4
True or False: RAM is non-volatile
True
False
5
Which is a disadvantage of online, asynchronous training delivery?
no ability to talking directly with a trainer
user can be self-paced
more dangerous during COVID
it is more difficult to complete
6
Al sent a message to Mo. The first part of the e-mail arrived after the second. Why was Mo able to read the e-mail?
Successful Authentication
TCP Check Sum
TCP Sequencing
Data Compression
7
To prevent data loss, Jordan should do all of the following EXCEPT:
Install pop-up Blockers
Install Anti-virus software
Perform Regular Backups
Use Redundant Storage devices
8
How does the cache help to increase the operational speed of the CPU?
By storing results from the ALU in RAM
By loading data from ROM
By keeping frequently used data in high speed registers on or near the CPU
By swapping data between the disk drive and RAM
9
Which is the best choice when streaming video?
UDP
SLL
TCP
Wifi
10
Which is least likely to cause a problem with a WiFi Connection
A broken or twisted Ethernet cable
Trying to work half a mile from the access point
A lot of people logging in from the same location
A Physical Barrier
11
What is the efficiency of a linear search algorithm on a list with N elements?
N log N
N
log N
N^2
12
Which sequence best represents the machine instruction cycle?
Fetch, Decode, Execute, Store
Store, Fetch, Decode, Execute
Decode, Store, Fetch, Execute
Decode, Fetch, Execute, Store
13
Which Logic Gate is represented by the following Venn Diagram?
OR
XOR
AND
NAND
14
Bo's company introduced a new time entry system, initially only to the sales department (later to everyone). This shows:
Delayed Introduction
Hard Changeover
Phased Implementation
Pilot Implementation
15
Five minutes ago, Jim was able to log in to a company's server as Anna. Which of the following just failed?
Data Confidentiality
User Authentication
Data Integrity
Network Reliability
16
Which of the following functions is NOT a role of the Operating System?
Peripheral Communication Management
Memory Management
Machine Learning
File Security
17
Which is a feature specific to peer-to-peer networks?
Data Integrity
One primary backup
Speed of Data Transmission
Decentralization
18
The Most Populous Country in Africa is _____________
Ethiopia
Nigeria
Egypt
South Africa
19
Convert the binary 0110 1111 into hexidecimal
54
64
6F
5F
20
Where is the Operating System stored when the computer is turned off?
Cache
RAM
Hard Disk
ROM
21
Which material can be found in the composition of dollar bills?
leather
wood
cotton
wire filament
22
Al sent a message to Mo. The first part of the e-mail arrived after the second part. Why did that likely happen?
Lossy Physical Medium
Packet Switching
TCP Handshake Protocol
Network Outages
23
Convert 0011 0110 binary to base 10
65
54
55
64
24
Which data type is the best to store the results of a multiple choice question (from a memory efficiency standpoint)?
integer
character
boolean
String
25
According to the American Kennel Club, which of the following is the most popular breed?
Poodles
French Bulldogs
German Shepherd
Dachshunds
26
Which of the following was a primary original goal of the Internet's creators?
To create a Social Network with geographic borders
To create a world-wide network open to everyone
To ensure the speed of the transmission
To ensure reliability of transmission
27
This component performs mathematical and logical operations within the computer (select best answer)
MAR
CPU
Control Unit
ALU
28
Donna sent a message to Debbie. Debbie received the message but key data was changed. This is an example of what?
A Poor Data Transmission Protocol
Lack of Authentication
Loss of Data Integrity
Loss of Data Confidentiality
29
Which is NOT an example of Secondary Memory?
Flash Drive
CD ROM
ROM
Hard Disk
