- 36-page printable PDF
- 184 terms with examples
- 42 practice questions, answers explained
- 2-page cram sheet and study plans
DSST Computing and Information Technology Study Guide
Everything the DSST Computing and Information Technology exam tests, in one PDF you can print. Built from Prometric's official outline, heaviest topics first.
- 184 key terms, each with an example
- 42 practice questions with every answer explained
- A 2-page cram sheet for the night before
- 2-, 4- and 8-week study plans built from the exam weights
Last updated 2026 · exam details checked against Prometric's published exam information in 2026
What you get for $5
One chapter for each official content area, in the order the exam weighs them.
- 📘36pages, printable
- 🧭6chapters, heaviest first
- 🔑184terms with examples
- ✍️42practice questions, answers explained
- ⚠️18exam traps to avoid
- 📄2page cram sheet
Try 10 free Computing and Information Technology questions
In the style of the real exam, from all 6 areas. About 10 minutes, with every answer explained and a score by area.
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Question 1 · Application Software
A charity wants to send the same fundraising letter to 500 donors, each copy opening with the donor's own name and last gift amount. Which word processing feature is best suited?
Show the answer
Answer: C. Mail merge. Mail merge combines one document with a data list so every copy is personalized automatically.
The trap: A template gives a reusable layout, but it would still require typing each donor's details by hand.
Mail merge combines one document with a data list so every copy is personalized automatically.
The trap: A template gives a reusable layout, but it would still require typing each donor's details by hand.
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Question 2 · Software Development
A business has run the same inventory program for ten years, fixing errors, adding reports and adapting to new tax rules. Which life-cycle stage has this program spent most of its life in?
Show the answer
Answer: B. Maintenance. After release, a program spends most of its life being fixed and updated. Over its lifetime, maintenance usually takes the most time and money.
The trap: Coding is tempting because programmers write code, but writing the first version is a small part of a program's total lifetime effort.
After release, a program spends most of its life being fixed and updated. Over its lifetime, maintenance usually takes the most time and money.
The trap: Coding is tempting because programmers write code, but writing the first version is a small part of a program's total lifetime effort.
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Question 3 · Data Communications and Networks
A user types a website's name into a browser. Before the page can be requested, which service turns that name into the numeric address of the server?
Show the answer
Answer: A. Domain Name System. DNS looks up a domain name and returns the matching IP address so the browser can reach the server.
The trap: A search engine finds pages that match keywords. It does not turn a domain name into an IP address.
DNS looks up a domain name and returns the matching IP address so the browser can reach the server.
The trap: A search engine finds pages that match keywords. It does not turn a domain name into an IP address.
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Question 4 · Computer Organization and Hardware
During the fetch-decode-execute cycle, what happens right after the control unit fetches an instruction from memory?
Show the answer
Answer: D. The instruction is decoded to determine what operation it requires. Fetch brings the instruction into the CPU, decode works out what it means, and execute carries it out. Decoding is the second step.
The trap: Writing the result to secondary storage is wrong: the cycle works with memory and registers, not disks, and it happens after execution.
Fetch brings the instruction into the CPU, decode works out what it means, and execute carries it out. Decoding is the second step.
The trap: Writing the result to secondary storage is wrong: the cycle works with memory and registers, not disks, and it happens after execution.
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Question 5 · Social Impact and History
Which development of 1971 put an entire CPU on one chip and made the personal computer practical?
Show the answer
Answer: C. The microprocessor. The Intel 4004 of 1971 was the first commercial microprocessor, a complete CPU on a single chip.
The trap: The transistor is tempting because it is a basic building block, but it came in 1947 and is only one switch, not a whole CPU.
The Intel 4004 of 1971 was the first commercial microprocessor, a complete CPU on a single chip.
The trap: The transistor is tempting because it is a basic building block, but it came in 1947 and is only one switch, not a whole CPU.
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Question 6 · Systems Software
A systems administrator needs one server to run a Linux database and a Windows web application at the same time, without buying a second machine. Which technology does this?
Show the answer
Answer: B. Virtual machines. A virtual machine imitates a complete computer, so each guest operating system runs on shared physical hardware.
The trap: Job scheduling is tempting because it shares the processor, but it orders tasks within one operating system. It does not run a second operating system.
A virtual machine imitates a complete computer, so each guest operating system runs on shared physical hardware.
The trap: Job scheduling is tempting because it shares the processor, but it orders tasks within one operating system. It does not run a second operating system.
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Question 7 · Application Software
In a worksheet, cell C2 contains =B2*$E$1. The formula is copied down to cell C3. What does the formula in C3 become?
Show the answer
Answer: A. =B3*$E$1. The relative reference B2 shifts to B3 when copied one row down. The absolute reference $E$1 stays locked.
The trap: $E$2 is wrong because the dollar signs keep both the column and the row fixed, so nothing moves.
The relative reference B2 shifts to B3 when copied one row down. The absolute reference $E$1 stays locked.
The trap: $E$2 is wrong because the dollar signs keep both the column and the row fixed, so nothing moves.
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Question 8 · Software Development
A developer wants her finished program translated into machine language ahead of time, so that the resulting file can run without the source code or the translator. Which tool does this?
Show the answer
Answer: D. Compiler. A compiler translates the whole program ahead of time and produces a separate executable file.
The trap: An interpreter translates as the program runs, so the source and the interpreter must be present each time.
A compiler translates the whole program ahead of time and produces a separate executable file.
The trap: An interpreter translates as the program runs, so the source and the interpreter must be present each time.
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Question 9 · Data Communications and Networks
A small office of five employees shares files and a printer directly among their computers, with no dedicated machine controlling the network. Which network type is this?
Show the answer
Answer: A. Peer-to-peer network. With no central server and each computer sharing its own resources, this is a peer-to-peer network.
The trap: Client-server is tempting for any office, but it requires a central server to provide resources, and none exists here.
With no central server and each computer sharing its own resources, this is a peer-to-peer network.
The trap: Client-server is tempting for any office, but it requires a central server to provide resources, and none exists here.
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Question 10 · Computer Organization and Hardware
A laptop has 8 GB of RAM and many programs open. The operating system starts using part of the hard disk to hold some program data, and the computer slows down. What is this technique called?
Show the answer
Answer: D. Virtual memory. Using disk space as an extension of RAM is virtual memory. The disk is far slower than RAM, which is why the computer slows down.
The trap: Cache memory is fast memory next to the CPU, not disk space, so it would not slow the computer this way.
Using disk space as an extension of RAM is virtual memory. The disk is far slower than RAM, which is why the computer slows down.
The trap: Cache memory is fast memory next to the CPU, not disk space, so it would not slow the computer this way.
The DSST Computing and Information Technology exam at a glance
The DSST Computing and Information Technology exam is a 120-minute, computer-based test from Prometric with about 100 multiple-choice questions. A score of 400 on the 200–500 scale earns an ACE credit recommendation of 3 semester hours, though each college sets its own policy. The exam covers 6 content areas; the heaviest is Application Software at 22%.
- Questions
- About 100multiple choice
- Time
- 120 minabout 72 seconds a question
- Passing score
- 400on a 200–500 scale
- ACE credit
- 3semester hours
- Exam fee
- $100paid to Prometric
- Calculator
- Yeson-screen calculator provided
Source: official DSST Computing and Information Technology exam page.
What the exam covers
6 areas, heaviest first. The guide's chapters follow this order.
- Application Software22%
- Software Development21%
- Data Communications and Networks19%
- Computer Organization and Hardware17%
- Social Impact and History11%
- Systems Software10%
How it works
- 1Buy once, $5Secure checkout. No subscription needed.
- 2Download the PDFFrom your TransferCredit.org account, right away and any time later.
- 3Study the heaviest areas firstFollow the 2-, 4- or 8-week plan, then read the cram sheet the night before.
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