4_3_4 Section 4 – Operations and Incident Response - 4.3 – Investigations- Log Files

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of a Security Information and Event Manager (SIEM)?

  • To configure Syslog options on devices
  • To generate log entries on Linux devices
  • To consolidate logs from different devices (correct)
  • To process log information from a single device

What is the purpose of a facility code in a Syslog log entry?

  • To identify the program that created the log entry (correct)
  • To specify the severity level of the log entry
  • To determine the log entry's destination
  • To specify the type of device that generated the log entry

Which of the following is NOT a popular syslog daemon for Linux devices?

  • rsyslog
  • NXLog
  • syslog-ng
  • syslog (correct)

What is the benefit of using a SIEM to consolidate log files from different devices?

<p>To make it easier to search and analyze log data (A)</p> Signup and view all the answers

What is the purpose of a severity level in a Syslog log entry?

<p>To indicate the level of importance of the log entry (A)</p> Signup and view all the answers

What is the primary benefit of using Syslog to transfer log files?

<p>To allow for centralized log collection and consolidation (B)</p> Signup and view all the answers

What is the primary purpose of the journalctl utility in Linux?

<p>To query the system journal for log information (D)</p> Signup and view all the answers

What type of logs are specific to the operating system itself?

<p>System logs (A)</p> Signup and view all the answers

What is the primary reason for monitoring bandwidth usage?

<p>To qualify available bandwidth for applications (C)</p> Signup and view all the answers

What protocol is used for bandwidth monitoring?

<p>All of the above (D)</p> Signup and view all the answers

What type of information is contained in the headers of an email message?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of metadata in files?

<p>To describe other types of data (C)</p> Signup and view all the answers

What type of information can be stored in the metadata of a picture taken on a mobile device?

<p>All of the above (D)</p> Signup and view all the answers

What type of information is transferred in the metadata of a web browser connection?

<p>All of the above (D)</p> Signup and view all the answers

What type of information can be found in the metadata of a Microsoft Office document?

<p>All of the above (D)</p> Signup and view all the answers

What format are Linux system logs stored in?

<p>Binary format (D)</p> Signup and view all the answers

What can you see in the details of an email message?

<p>The return path and other validation details (A)</p> Signup and view all the answers

What is the primary function of NetFlow?

<p>To gather network statistics from switches and routers (A)</p> Signup and view all the answers

What is the architecture of NetFlow?

<p>Probe and collector are separated (D)</p> Signup and view all the answers

What is the primary purpose of protocol analyzers?

<p>To troubleshoot complex application problems (B)</p> Signup and view all the answers

What is IPFIX?

<p>A newer version of NetFlow (D)</p> Signup and view all the answers

Why is sFlow used?

<p>To reduce the resources required for network traffic analysis (D)</p> Signup and view all the answers

What type of networks can protocol analyzers be used on?

<p>Both wireless and wired networks, as well as wide area networks (C)</p> Signup and view all the answers

What can you infer from sFlow devices?

<p>Relatively accurate statistics from sampled traffic (D)</p> Signup and view all the answers

What feature of protocol analyzers allows users to view specific information?

<p>Packet filtering (B)</p> Signup and view all the answers

What is the purpose of a protocol analyzer?

<p>To get detailed information of network traffic (B)</p> Signup and view all the answers

What information is provided by the protocol decodes on a protocol analyzer?

<p>A plain English breakdown of network traffic (C)</p> Signup and view all the answers

What is shown in the NetFlow collector front end?

<p>Top 10 conversations and top 10 endpoints by bandwidth (C)</p> Signup and view all the answers

What information can be seen in the packet by packet breakdown of a protocol analyzer?

<p>Delta times, source IP addresses, source port numbers, and other information (A)</p> Signup and view all the answers

What is the advantage of IPFIX over NetFlow?

<p>It provides more flexibility in data collection (B)</p> Signup and view all the answers

What is the benefit of using a protocol analyzer to troubleshoot network issues?

<p>It provides a detailed breakdown of network traffic, making it easier to identify issues (A)</p> Signup and view all the answers

Why is NetFlow a well-established standard?

<p>It is compatible with devices from many manufacturers (A)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser