Which of the following is a characteristic of symmetric encryption?

It uses the same key for both encryption and decryption

It uses two different keys for encryption and decryption

It is slower than asymmetric encryption for the same level of security

It is also known as public-key cryptography

A security analyst is evaluating a system that uses digital signatures to ensure that a message was sent by a specific user and was not modified. Which two security goals are primarily achieved by this mechanism?

Non-repudiation and confidentiality

Confidentiality and non-repudiation

A web server's TLS certificate is about to expire. The administrator needs to replace it before the expiration date to avoid browser warnings. What is the correct sequence of actions?

Reuse the existing private key and simply re-issue the same certificate.

Continue using the existing certificate until it expires, then renew it.

Generate a new key pair, create a CSR, submit it to the CA, receive the new certificate, and install it on the server.

Disable TLS on the server until the new certificate is installed.

EC-CouncilCertified Security Specialist

Domain 1Objective 6

Cryptography and PKI ECSS Practice Questions (Page 1)

Part of the Network Defense Fundamentals and Controls domain, which makes up ~21% of our current practice bank.

50questions here

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Questions 1–5

1foundation · easy
Which of the following is a characteristic of symmetric encryption?
Select an answer first
2application · medium
A security analyst is evaluating a system that uses digital signatures to ensure that a message was sent by a specific user and was not modified. Which two security goals are primarily achieved by this mechanism?
Select an answer first
3application · medium
A company is setting up a PKI and wants to separate the task of verifying certificate applicants' identities from the task of actually issuing certificates. Which PKI component should handle the identity verification?
Select an answer first
4application · medium
A web server's TLS certificate is about to expire. The administrator needs to replace it before the expiration date to avoid browser warnings. What is the correct sequence of actions?
Select an answer first
5foundation · easy
Which key does a sender use to create a digital signature?
Select an answer first

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Cryptography and PKI ECSS Practice Questions (Page 1)

Questions 1–5

Which of the following is a characteristic of symmetric encryption?

A security analyst is evaluating a system that uses digital signatures to ensure that a message was sent by a specific user and was not modified. Which two security goals are primarily achieved by this mechanism?

A company is setting up a PKI and wants to separate the task of verifying certificate applicants' identities from the task of actually issuing certificates. Which PKI component should handle the identity verification?

A web server's TLS certificate is about to expire. The administrator needs to replace it before the expiration date to avoid browser warnings. What is the correct sequence of actions?

Which key does a sender use to create a digital signature?

Keep studying — Network Defense Fundamentals and Controls