Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

computer science(a level) > Re take (best one ) > Flashcards

Re take (best one ) Flashcards

1
Q

Network Switch

A

Joins computers together on a LAN. Receives and sends packets.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Foreign Key

A

A field that links to a primary key in a second table.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Referential Integrity

A

When database relationships are consistent.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Multicore Processor

A

More than one processing unit in a single processor, which can process instructions at the same time.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

IP Protocol

A

To route data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

which type of data structure is a Linked List

A

Dynamic data structure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

OOP (Object-Oriented Programming)

A

Focuses on reusability and easy update of code.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Link Layer

A

Responsible for the transmission of data between two nodes over a physical connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

CU (Control Unit)

A

Sends out control signals to other parts of the CPU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

PC (Program Counter)

A

Holds the address in memory of the next instruction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

MAR (Memory Address Register)

A

Stores the address of the data that needs to be fetched from memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

MDR (Memory Data Register)

A

Stores the data that has been fetched from main memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

CIR (Current Instruction Register)

A

Stores the most recent instruction waiting to be decoded or executed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what happens in the Fetch stage(mention registers)

A

The PC copies the address of the next instruction into the MAR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Decode

A

The CU decodes the instruction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Execute

A

The CPU executes the instructions within the CIR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

CISC (Complex Instruction Set Computer)

A

Supports more instructions, requiring more power and generating more heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

RISC (Reduced Instruction Set Computer)

A

Supports fewer instructions, requiring less power and generating less heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

GPU (Graphics Processing Unit)

A

An example of an array processor, used for parallel processing and tasks like breaking passwords

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Parallel Processing

A

Simultaneous processing of data

21
Q

SIMD (Single Instruction, Multiple Data)

A

Array processing where the same instruction is carried out on multiple data

22
Q

MIMD (Multiple Instruction, Multiple Data)

A

Multicore processing where different instructions are carried out concurrently on different data

23
Q

Flat File

A

A database storage where all the data is stored in one large table, with advantages in easy setup but redundant data

24
Q

OCR (Optical Character Recognition)

A

Technology for converting printed or handwritten text into machine-readable data

25
Q

DBMS (Database Management System)

A

Software that enforces data integrity rules, provides secure access, and encryption for databases

26
Q

2NF (Second Normal Form)

A

A database normalization level where there are no partial dependencies

27
Q

3NF (Third Normal Form)

A

A database normalization level where all fields are dependent only on the primary key

28
Q

SQL (Structured Query Language)

A

A language for managing and manipulating relational databases, with SELECT, WHERE, and JOIN statements

29
Q

Transaction

A

A change or set of changes made to a database

30
Q

Atomicity

A

Ensures a transaction is fully completed or not at all

31
Q

Consistency

A

Requires any change to follow the referential integrity rules

32
Q

Isolation

A

Ensures one change to the database does not interfere with another

33
Q

Durability

A

Requires a transaction to be saved permanently in the database

34
Q

Data Integrity

A

Refers to the accuracy and reliability of data

35
Q

Redundancy

A

When a database is cloned and operates concurrently with the original database

36
Q

NIC (Network Interface Card)

A

Enables a computer to be connected to a network

37
Q

Router

A

Connects different networks together

38
Q

Standard

A

A formalized protocol accepted by most parties implementing it

39
Q

TCP (Transmission Control Protocol)

A

Used to ensure error-free transmission

40
Q

IP (Internet Protocol)

A

Used to transfer packets across the internet between routers

41
Q

DNS (Domain Name System)

A

Used to name and organize internet resources, matching URLs to IP addresses

42
Q

Firewalls

A

Monitor and filter data going into and out of a network

43
Q

Proxies

A

Computers interposed between a network and a remote resource

44
Q

Disadvantages of Peer-to-Peer

A

Lack of accessibility when a peer goes offline and difficulty in centrally updating software

45
Q

Computers in the Workforce

A

Employees may be subject to monitoring to assess productivity

46
Q

Automated Decision Making

A

Computers use algorithms to make decisions, dependent on accurate data and quality algorithms

47
Q

AI (Artificial Intelligence)

A

Can perform repetitive or hazardous jobs but may lead to job displacement for humans

48
Q

Environmental Issues

A

Cryptocurrency mining consumes large amounts of electricity, but electronic communication reduces paper and fuel usage for remote work

49
Q

Censorship

A

Authorities limiting people’s access to information

computer science(a level) (24 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions