Apu manages network devices in his store and maintains copies of the

configuration files for all the managed routers and switches. On a weekly

basis, he creates hashes for these files and compares them with hashes he

created on the same files the previous week. Which of the following use

cases is he MOST likely supporting?

Which of the following is a cryptographic algorithm that will create a

fixed-length output from a data file but cannot be used to re-create the

original data file?

Your organization hosts an e-commerce web server selling digital

products. The server randomly experiences a high volume of sales and

usage, which causes spikes in resource usage. These spikes occasionally

take the server down. Which of the following should be implemented to

prevent these outages?

An administrator recently installed an IDS to help reduce the impact of

security incidents. Which of the following BEST identifies the control type

of an IDS?

Maggie works in the security section of the IT department. Her primary

responsibilities are to monitor security logs, analyze trends reported by the

SIEM, and validate alerts. Which of the following choices BEST identifies

the primary security control she’s implementing?

A server in your network’s DMZ was recently attacked. The firewall logs

show that the server was attacked from an external IP address with the

following socket: 72.52.230.233:6789. You want to see if the connection is

still active. Which of the following tools would be BEST to use?

You suspect that traffic in your network is being rerouted to an

unauthorized router within your network. Which of the following

command-line tools would help you narrow down the problem?

Homer is complaining that he frequently has trouble accessing files on a

server in the network. You determine the server’s IP address is

172.16.17.11, but ping doesn’t show any problem. You decide to use

pathping and see the following results:

C:\>pathping 172.16.17.11

Tracing route to 172.16.17.11

over a maximum of 30 hops:

0 192.168.7.34

1 192.168.7.1

2 192.168.5.1

3 10.5.48.1

4 10.80.73.150

5 172.16.17.11

Computing statistics for 125 seconds...

Source to Here This Node/Link

Hop RTT Lost/Sent=Pct Lost/Sent=Pct Address

0 192.168.7.34

0/100 = 0% |

1 45 ms 0 / 100 = 0% 0/100 = 0% 192.168.7.1

14/100 = 14% |

2 25 ms 15 / 100 = 15% 0/100 = 0% 192.168.5.1

0/100 = 0% |

3 22 ms 16 / 100 = 16% 0/100 = 0% 10.5.48.1

0/100 = 0% |

4 --- 100 / 100 = 100% 100/100 = 100% 10.80.73.150

0/100 = 0% |

5 23 ms 16 / 100 = 16% 0/100 = 0% 172.16.17.11

Which of the following is the MOST likely problem?

You’re troubleshooting a connectivity issue with a server that has an IP

address of 192.168.1.10 from your Linux system. The server does not

respond to the ping command, but you suspect that a router is blocking the

ping traffic. Which of the following choices would you use to verify the

server is responding to traffic?

Lisa is manually searching through a large log file on a Linux system

looking for brute force attack indicators. Which of the following commands

will simplify this process for her?

You want to verify that the syslog file is being rotated successfully on a

Linux system. Which of the following commands is the BEST choice to

use?

You are writing a script that will perform backups on a Linux system

and you plan to schedule the script to run after midnight daily. You want to

ensure that the script records when the backup starts and when the backup

ends. Which of the following is the BEST choice to meet this requirement?

Maggie needs access to the project.doc file available on a Linux server.

Lisa, a system administrator responsible for this server, sees the following

permissions for the file:

rwx rw- ---

What should Lisa use to grant Maggie read access to the file?

Which of the following describes the proper format of log entries for

Linux systems?