In MACsec key management, what is the role of the Connectivity Association Key (CAK)?

It identifies the secure channel

It authenticates the peers and is used to derive the SAK

It encrypts the data payload of each frame

A security engineer is explaining MACsec to a colleague and states that MACsec provides both confidentiality and integrity. Which statement correctly describes how MACsec achieves this?

MACsec only provides integrity by appending an ICV, without encryption.

MACsec encrypts the payload and appends a SecTAG and an ICV, leaving the destination MAC address in clear.

MACsec encrypts the entire frame and uses a separate integrity key to protect the header.

MACsec encrypts the entire Ethernet frame, including the destination MAC address, and appends an ICV.

A company is deploying MACsec on its data center access switches to protect against man-in-the-middle attacks on the network. Which benefit of MACsec is most relevant to this requirement?

MACsec encrypts the IP header, preventing attackers from analyzing traffic patterns.

MACsec authenticates users and devices at the network layer.

MACsec encrypts the entire Ethernet frame, including the source and destination MAC addresses.

MACsec provides integrity and encryption at the Ethernet layer, preventing unauthorized modification and eavesdropping.

Juniper NetworksCertified Specialist, Enterprise Routing and Switching (JNCIS-ENT)

Domain 3Objective 3

MACsec JN0-352 Practice Questions (Page 1)

Part of the Layer 2 Security domain, which makes up ~13% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–8 in this domain), expect 1–1 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

7concepts

Questions 1–5

1foundation · easy
A network administrator wants to prevent an attacker from inserting forged frames into a switched network segment. Which Layer 2 security technology is designed specifically to provide authentication and integrity for Ethernet frames?
Select an answer first
2foundation · easy
In MACsec key management, what is the role of the Connectivity Association Key (CAK)?
Select an answer first
3application · medium
A security engineer is explaining MACsec to a colleague and states that MACsec provides both confidentiality and integrity. Which statement correctly describes how MACsec achieves this?
Select an answer first
4foundation · easy
Which Junos operational command is used to verify the MACsec status on an interface?
Select an answer first
5application · medium
A company is deploying MACsec on its data center access switches to protect against man-in-the-middle attacks on the network. Which benefit of MACsec is most relevant to this requirement?
Select an answer first

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MACsec JN0-352 Practice Questions (Page 1)

Questions 1–5

A network administrator wants to prevent an attacker from inserting forged frames into a switched network segment. Which Layer 2 security technology is designed specifically to provide authentication and integrity for Ethernet frames?

In MACsec key management, what is the role of the Connectivity Association Key (CAK)?

A security engineer is explaining MACsec to a colleague and states that MACsec provides both confidentiality and integrity. Which statement correctly describes how MACsec achieves this?

Which Junos operational command is used to verify the MACsec status on an interface?

A company is deploying MACsec on its data center access switches to protect against man-in-the-middle attacks on the network. Which benefit of MACsec is most relevant to this requirement?

Keep studying — Layer 2 Security