015_Key Exchange - CompTIA Security+ SY0-701 - 1.4

Front

What is a limitation of out-of-band key exchange?

Back

It is impractical for internet-based communications.

Front

Which method uses asymmetric encryption to securely exchange a symmetric key? Options: In-band key exchange, Symmetric key exchange, Out-of-band key exchange, Public key cryptography

Back

In-band key exchange

Front

What is a characteristic of session keys?

Back

They are temporary and used for a single session.

Front

How does key exchange without sending a key work?

Back

By generating the same symmetric key on both ends without sending it.

Front

What is exchanged in public key cryptography for key exchange?

Back

Public keys

Front

What ensures secure communication while minimizing risks of key interception? Options: Out-of-band key exchange, Key exchange algorithms that create a shared key without transmitting it, Using only symmetric encryption, Using unencrypted channels

Back

Key exchange algorithms that create a shared key without transmitting it

Front

The two methods of encrypting data are?

Back

Symmetric and asymmetric

Front

__________________ is used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an encryption scheme in which the encryption key is made public, but the decryption key is kept private.

Back

Public key

Front

In asymmetric encryption, which key is used to encrypt the data?

Back

Public key

Front

Which encryption method uses the same key for both encryption and decryption?

Back

Symmetric encryption