BJC Assessment

In the item shown below, what is the Top Level domain (TLD)?

.org

Which of the following are true about both linear and binary searches?

1. and 3. only

How long will this parallel program take to run?

14

Key agreement protocol relates to which of the following concepts?

A one way computation that can be done quickly but cannot be undone quickly

What is a certificate?

A verification for a website signed by a designated authority

Given the network in the diagram, what is an available path for A and B if the link between A and B is down?

ACB

with a problem that cannot be solved for all cases, what can sometimes be used as a close approximation?

An heuristic solution

The art of encoding messages so they can't be understood by eavesdroppers or adversaries into whose hands the messages might fall is called

Encryption

What is the name for a setup where processing is done at the sending and receiving and receiving locations?

End-to-end architecture

What programming language are most web pages written in:

HTML

Which of the following is false about HTTPS?

HTTPS trades faster performance for more security

What is the primary problem that cryptography is trying to solve?

How to get a coded message sent that can't be intercepted by the enemy

Which of the following is NOT a reason that open standards help strengthen encryption security

Open standards allow proof of factorization is possible using quantum computing

A(n) _____ is one with the goal of finding the best solution among many such as, "what's the best school schedule to place every student into as many of their requested classes as possible?"

Optimization problem

In ________, the program is broken into smaller steps, some of which are performed at the same time

Parallel computing

When referring to the concept of speedup, it can be calculated by dividing the sequential time by ___

Parallel time

The term "reasonable time" describes any algorithm that runs in _____ time. Exponential time algorithms are not considered reasonable.

Polynomial

Why is Internet routing usually dynamic?

So that if a path on the route is congested or not working, a new path can be assigned

Which of the following is NOT true about TCP/IP packets?

TCP guarantees that no packets are ever dropped

Which of the following is a characteristic of the fault tolerant nature of communication on the internet

The ability to provide data transmission even when some connections have failed

What is bandwidth?

The amount of data that can be sent in a fixed period of time

Why is there a limit to adding additional devices to a parallel system?

The amount of time the sequential part takes to run cannot be shortened by adding devices.

The reason why the public and private key encryption/decryption model is considered secure is...

The system is symmetric which makes it immune to brute force attacks

A(n) _____ problem is where it is not possible to write an algorithm that will give a correct output for all inputs--even though it might be possible for some of them

Undecidable

What is the name of the item shown below:

Uniform resource locator

An ___ is one for which no algorithm can ever be written to find the solution

Unsolvable problem

CHOOSE TWO!! Which of the following questions can be answered with a binary search, assuming the data are sorted?

What is Ms. Comer's phone number? Tell me if milk is on my shopping list

Why is a binary (divide and conquer) search more efficient than a linear search?

You eliminate half the data set with each iteration

An example of a domain name would be

all of these

The efficiency of an algorithm deals with the following: 1. how long it will take to run 2. how large the data set is 3. how much memory will be needed

all of these

Which of the following are existing vulnerabilities of sectors of the internet, according to experts?

all of these are true

The World Wide Web is a(n) ______ that runs on the internet

application

A(n) _____ problem is a decision problem for which it IS possible to write an algorithm that will give a correct output for all inputs

decidable

A(n) _____ is a problem with a true/false answer such as, "is 11 a prime number?"

decision problem

Which computing system can process larger datasets when multiple devices are combined because of the additional memory and storage provided?

distributed

____ is a form of parallel computing that uses multiple computers (perhaps even spread out around the world).

distributed computing

Which of the following is NOT a benefit of cloud computing

people can access the "cloud" from most any device

In the process of digging, a landscaping company cuts a fiber line. Transmission of Internet traffic is still possible through additional pathways that provide alternate routes between the source and destination. The additional pathways describe a concept known as:

redundancy

Internet _____ is the ability of the net to keep working even as the size of the network

scalability

A parallel computing system uses multiple computers to run

sections of the program at the same time

In ______, operations are performed in order one at a time.

sequential computing

The table below shows the computer time it takes to complete various tasks on the data of different sized towns. Based on the information in the table, which of the following tasks is likely to take the longest amount of time when scaled up for a city population 1,000,000

sorting data

Substitution ciphers are examples of symmetric encryption because they use _____ for both encryption and decryption

the same key