The answer is a TLS certificate issued by a trusted certificate authority. This control provides trust because browsers and operating systems maintain a root store of trusted CAs; when a user visits the HTTPS portal, the server presents a certificate signed by that CA, and the browser cryptographically verifies the signature chain back to a trusted root, ensuring the public key belongs to the claimed domain. On the Security+ SY0-701 exam, this tests your understanding of TLS certificate trust and authentication, often appearing in questions about preventing man-in-the-middle attacks or phishing portals. A common trap is confusing self-signed certificates with CA-issued ones—self-signed certificates lack a trusted root, so browsers display a warning. Remember the mnemonic: “Trust the Chain, Block the Fake”—if the certificate chain doesn’t end at a trusted root, the site is not authenticated.
SY0-701 General Security Concepts Practice Question
This SY0-701 practice question tests your understanding of general security concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company launches a new HTTPS portal. Users should be able to confirm the site is really the company's portal and not a fake copy. Which control provides that trust?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A TLS certificate issued by a trusted certificate authority
A TLS certificate issued by a trusted certificate authority (CA) provides the trust needed because browsers and operating systems maintain a root store of trusted CAs. When a user visits the HTTPS portal, the server presents a certificate signed by that CA, and the browser cryptographically verifies the signature chain back to a trusted root. This ensures the public key belongs to the claimed domain, authenticating the server and preventing impersonation by a fake copy.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
A self-signed certificate installed only on user laptops
Why it's wrong here
Self-signed certificates can work in controlled labs, but users cannot easily trust them on their own.
✓
A TLS certificate issued by a trusted certificate authority
Why this is correct
A trusted CA-issued certificate lets browsers validate the site identity and build user trust securely.
Related concept
Read the scenario before looking for a memorised answer.
✗
A SHA-256 checksum posted on the login page
Why it's wrong here
A checksum can verify file integrity, but it does not establish the identity of the website.
✗
A shared password embedded in the page source
Why it's wrong here
A shared password in page source would be insecure and would not validate the server's identity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse integrity checks (like SHA-256 checksums) with authentication mechanisms, or they think a self-signed certificate can be trusted if installed locally, but in practice, self-signed certificates lack the third-party validation needed to prevent man-in-the-middle attacks on a public-facing portal.
Detailed technical explanation
How to think about this question
Under the hood, TLS certificate validation involves checking the certificate's digital signature against the CA's public key, verifying the certificate is not expired or revoked (via CRL or OCSP), and confirming the Common Name (CN) or Subject Alternative Name (SAN) matches the requested domain. In a real-world scenario, an attacker could create a fake portal with a self-signed certificate, but a browser would reject it because the certificate is not in the trusted root store; only a CA-issued certificate passes the chain-of-trust validation defined in RFC 5280.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SY0-701 question in full detail.
General Security Concepts — This question tests General Security Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A TLS certificate issued by a trusted certificate authority — A TLS certificate issued by a trusted certificate authority (CA) provides the trust needed because browsers and operating systems maintain a root store of trusted CAs. When a user visits the HTTPS portal, the server presents a certificate signed by that CA, and the browser cryptographically verifies the signature chain back to a trusted root. This ensures the public key belongs to the claimed domain, authenticating the server and preventing impersonation by a fake copy.
What should I do if I get this SY0-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Based on the exhibit, what is the best conclusion about the signed document?
hard
A.The invoice is confidential because the signature encrypts the document contents.
✓ B.The invoice was not changed after signing and the signer’s certificate chain validated correctly.
C.The invoice can be edited if the timestamp is still within business hours.
D.The sender’s private key is now public because the certificate verified successfully.
Why B: Option B is correct because a valid digital signature provides both integrity (the document was not altered after signing) and authentication (the signer's certificate chain validates to a trusted root). The exhibit shows a successful signature validation, which cryptographically proves that the invoice has not been modified since signing and that the signing certificate is trusted.
Last reviewed: Jun 11, 2026
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