CyberOps Chap24

What method allows VPN traffic to remain confidential?

• Encryption

• Verification

• Authentication

• Encapsulation

To facilitate the troubleshooting process, which inbound ICMP message should be permitted on an outside interface?

• Time-stamp Request

• Echo Reply

• Router Advertisement

• Echo Request

Which type of server would support the SMTP, POP, and IMAP protocols?

• Proxy

• Syslog

• Email

• DHCP

Which network service synchronizes the time across all devices on the network?

• NTP

• Netflow

• SNMP

• Syslog

What port number would be used if a threat actor was using NTP to direct DDoS attacks?

• 25

• 123

• 443

• 69

Which protocol is used to send e-mail messages between two servers that are in different e-mail domains?

• POP3

• SMTP

• IMAP4

• HTTP

Which type of server daemon accepts messages sent by network devices to create a collection of log entries?

• Syslog

• AAA

• SSH

• NTP

What type of server can threat actors use DNS to communicate with?

• web

• NTP

• database

• CnC