Which of the following are symmetric encryption algorithms? Select all that apply.
IncorrectCompare the plans
Review our CompTIA A+ preparation plans side by side and choose the plan that best fits your study needs and timeline.
| Plan features | Free practice$0to start | Most popularFull access$7.99per week | 3-month prep$49.99per 3 months | 6-month prep$79.99per 6 months | Financial assistanceReducedjust ask |
|---|---|---|---|---|---|
| Real questions from your exam | Included | Included | Included | Included | Included |
| Full rationale on every answer | Included | Included | Included | Included | Included |
| iPhone, Android, and web | Included | Included | Included | Included | Included |
| Full IT & Cybersecurity question bank | Not included | Included | Included | Included | Included |
| Progress score, section by section | Not included | Included | Included | Included | Included |
| Pass Guarantee — 93% pass or money back | Not included | Included | Included | Included | Included |
| Cancel anytime — no lock-in | Not included | Included | Included | Included | Included |
| One payment — nothing auto-renews | Not included | Not included | Included | Included | Not included |
| Save 50%+ vs paying weekly | Not included | Not included | Included | Included | Not included |
| Reduced pricing for students who need it | Not included | Not included | Not included | Not included | Included |
| Email us |
| Real questions from your exam | Included |
|---|---|
| Full rationale on every answer | Included |
| iPhone, Android, and web | Included |
| Full IT & Cybersecurity question bank | Not included |
| Progress score, section by section | Not included |
| Pass Guarantee — 93% pass or money back | Not included |
| Cancel anytime — no lock-in | Not included |
| One payment — nothing auto-renews | Not included |
| Save 50%+ vs paying weekly | Not included |
| Reduced pricing for students who need it | Not included |
Every subject area, covered
- 1101 2.0: Networking100 questions
- 1101 1.0: Mobile Devices70 questions
- 1101 4.0: Virtualization and Cloud Computing51 questions
- 1101 3.0: Hardware180 questions
- 1102 4.0: Operational Procedures105 questions
- 1101 5.0: Hardware and Network Troubleshooting99 questions
- 1102 1.0: Operating Systems175 questions
- 1102 3.0: Software Troubleshooting116 questions
- 1102 2.0: Security104 questions
Understand why,
not only what.
CompTIA A+ questions test how you apply knowledge in real situations. After every answer, you are provided with a clear rationale so you can understand the reasoning, learn from mistakes, and recognize it when it appears again.
Question 1 of 3
Which port does HTTPS use by default?
Study anywhere, on any device
Pick up on the web
Same questions, same progress. Log in on any browser and keep going where you left off.
Take it in your pocket
Phone app, same account: five-minute sessions on the bus, in line, between classes.
Trusted by students across the globe
“I'm hands-on with learning but doing the 10 questions a day and actually working on my own desktop does create a situation where you are retaining information and knowledge. Not only are these real time issues, the app also explain in detail the reason said issue occurred with whatever category of study you choose. I now feel more warm and fuzzy so to speak when it comes to CompTIA A+ and Networking”
“…now that I have passed, all three have offered me the job!”
“My daughter says this app saved her career!”
“... And we passed yo! I used this in the weeks leading up to the PTCB.”
“Just passed my NHA CPT exam with a 90%+ This app 100% helped me and sharpened up my skills.”
Every answer shapes what you study next.
Practice
Answer exam-specific questions under realistic conditions.
Understand
Learn the reasoning behind every correct answer.
Focus
Turn missed questions into your next study session.
Improve
Repeat with purpose and build confidence with every session.
Before you start,
you probably want to know…
The questions students ask us before they start,
answered without the fine print.
That's the whole point. Our writers work from the official exam blueprint, so the format, difficulty, and topic mix match what you'll face on test day. Every question comes with a full explanation of the answer, and when the exam changes, the bank changes with it.
