Refer to the exhibit.

A network administrator configures command authorization for the admin5 user. What is the admin5 user able to do on HQ_Router after this configuration?

• A.set the IP address of an interface
• B.complete no configurations
• C.complete all configurations
• D.add subinterfaces

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Which feature within Cisco Umbrella allows for the ability to inspect secure HTTP traffic?

• A.File Analysis
• B.SafeSearch
• C.SSL Decryption
• D.Destination Lists

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What is the function of the Context Directory Agent?

• A.maintains users' group memberships
• B.relays user authentication requests from Web Security Appliance to Active Directory
• C.reads the Active Directory logs to map IP addresses to usernames
• D.accepts user authentication requests on behalf of Web Security Appliance for user identification

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An administrator is configuring a DHCP server to better secure their environment. They need to be able to ratelimit the traffic and ensure that legitimate requests are not dropped. How would this be accomplished?

• A.Set a trusted interface for the DHCP server
• B.Set the DHCP snooping bit to 1
• C.Add entries in the DHCP snooping database
• D.Enable ARP inspection for the required VLAN

Correct Answer: A

To understand DHCP snooping we need to learn about DHCP spoofing attack first.

DHCP spoofing is a type of attack in that the attacker listens for DHCP Requests from clients and answers them with fake DHCP Response before the authorized DHCP Response comes to the clients. The fake DHCP Response often gives its IP address as the client default gateway -> all the traffic sent from the client will go through the attacker computer, the attacker becomes a "man-in-the-middle".
The attacker can have some ways to make sure its fake DHCP Response arrives first. In fact, if the attacker is "closer" than the DHCP Server then he doesn't need to do anything. Or he can DoS the DHCP Server so that it can't send the DHCP Response.
DHCP snooping can prevent DHCP spoofing attacks. DHCP snooping is a Cisco Catalyst feature that determines which switch ports can respond to DHCP requests. Ports are identified as trusted and untrusted.

Only ports that connect to an authorized DHCP server are trusted, and allowed to send all types of DHCP messages. All other ports on the switch are untrusted and can send only DHCP requests. If a DHCP response is seen on an untrusted port, the port is shut down.

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Which proxy mode must be used on Cisco WSA to redirect TCP traffic with WCCP?

• A.redirection
• B.proxy gateway
• C.transparent
• D.forward

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