Free COBRA System Monitoring and Maintenance Questions and Answers

Question 1

Your organization’s security policy requires that PII data-in-transit must be encrypted. Which of the following protocols would BEST meet this requirement?

Accepted Answer

SSH

Answer

You can use Secure Shell (SSH) to encrypt Personally Identifiable Information (PII) data when transmitting it over the network (data-in-transit). Secure File Transfer Protocol (SFTP) uses SSH to encrypt File Transfer Protocol (FTP) traffic. FTP, Simple Mail Transfer Protocol (SMTP), and Hypertext Transfer Protocol (HTTP) transmit data in cleartext unless they are combined with an encryption protocol.

Question 2

Marge needs to collect network device configuration information and network statistics from devices on the network. She wants to protect the confidentiality of credentials used to connect to these devices. Which of the following protocols would BEST meet this need?

Accepted Answer

SNMPv3

Answer

Simple Network Management Protocol version 3 (SNMPv3) is a secure protocol that can monitor and collect information from network devices. It includes strong authentication mechanisms to protect the confidentiality of credentials. None of the other protocols listed are used to monitor network devices. Secure Shell (SSH) provides a secure method of connecting to devices but does not monitor them. File Transfer Protocol Secure (FTPS) is useful for encrypting large files in transit, using Transport Layer Security (TLS). TLS is commonly used to secure transmissions but doesn’t include methods to monitor devices.

Question 3

Lisa is enabling NTP on some servers within the DMZ. Which of the following use cases is she MOST likely supporting this action?

Accepted Answer

Provide time synchronization

Answer

The Network Time Protocol (NTP) provides time synchronization services, so enabling NTP on servers would meet this use case. The Real-time Transport Protocol (RTP) delivers audio and video over IP networks and Secure RTP (SRTP) provides encryption, message authentication, and integrity for RTP. Protocols such as Simple Mail Transfer Protocol (SMTP), Post Office Protocol v3 (POP3), and Internet Message Access Protocol version 4 (IMAP4) are used for email. Encrypting data isn’t relevant to time synchronization services provided by NTP.

Question 4

Your organization wants to increase security for VoIP and video teleconferencing applications used within the network. Which of the following protocols will BEST support this goal?

Accepted Answer

SRTP

Answer

The Secure Real-time Transport Protocol (SRTP) provides encryption, message authentication, and integrity for Voice over Internet Protocol(VoIP), video teleconferencing, and other streaming media applications. None of the other answers are directly related to VoIP or video teleconferencing. Simple Mail Transfer Protocol (SMTP) transfers email. The Transport Layer Security (TLS) protocol is used to encrypt data-in-transit but isn’t the best choice for streaming media. Secure File Transfer Protocol (SFTP) is a secure implementation of FTP to transfer files.

Question 5

Management within your organization wants to ensure that switches are not susceptible to switching loop problems. Which of the following protocols is the BEST choice to meet this need?

Accepted Answer

RSTP

Answer

Rapid STP (RSTP) prevents switching loop problems and should be enabled on the switches to meet this need. A flood guard on a switch helps prevent a media access control (MAC) flood attack. Simple Network Management Protocol version 3 (SNMPv3) is used to manage and monitor network devices. The Secure Real-time Transport Protocol (SRTP) provides encryption, message authentication, and integrity for video and voice data.

COBRA - Console Operator Basic Requirements Assessment Practice Test

COBRA - Console Operator Basic Requirements Assessment Practice Test

Free COBRA System Monitoring and Maintenance Questions and Answers