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Network+ Guide to Networks, Seventh Edition, Exercises of Network security

Sterling College KansasNetwork security

What unique characteristic of zero-day exploits make them so dangerous? Answer: The vulnerability is exploited before the software developer has the opportunity ...

Typology: Exercises

2021/2022

Uploaded on 09/12/2022

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Network+ Guide to Networks, Seventh Edition
Chapter 8, Solutions
Review Questions
1. Your organization has just approved a special budget for a network security upgrade. What
procedure should you conduct in order to make recommendations for the upgrade priorities?
A. Data breach
B. Security audit
C. Exploitation
D. Posture assessment
Answer: D. Posture assessment
2. What wireless attack might a potential hacker execute with a specially configured
transmitter?
A. Jamming
B. Vulnerability
C. Evil twin
D. Zero-day exploit
Answer: A. Jamming
3. What kind of vulnerability is exploited by a ping of death?
A. Zero-day exploit
pf3
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Network+ Guide to Networks, Seventh Edition

Chapter 8 , Solutions

Review Questions

  1. Your organization has just approved a special budget for a network security upgrade. What procedure should you conduct in order to make recommendations for the upgrade priorities? A. Data breach B. Security audit C. Exploitation D. Posture assessment Answer: D. Posture assessment
  2. What wireless attack might a potential hacker execute with a specially configured transmitter? A. Jamming B. Vulnerability C. Evil twin D. Zero-day exploit Answer: A. Jamming
  3. What kind of vulnerability is exploited by a ping of death? A. Zero-day exploit

B. Buffer overflow C. Social engineering D. Backdoor Answer: B. Buffer overflow

  1. Which type of DoS attack orchestrates an attack using uninfected computers? A. DDoS (distributed DoS) attack B. Smurf attack C. DRDoS (distributed reflector DoS) attack D. PDoS (permanent DoS) attack Answer: C. DRDoS (distributed reflector DoS) attack
  2. What software might be installed on a device in order to authenticate it to the network? A. Operating system B. Security policy C. NAC (network access control) D. Agent Answer: D. Agent
  3. What feature of Windows Server allows for agentless authentication? A. Active Directory B. ACL (access control list)

D. Layer 4 Answer: C. Layer 7

  1. What kind of virus runs in place of the computer’s normal system files? A. Worms B. Macro viruses C. File-infector viruses D. Boot sector viruses Answer: D. Boot sector viruses
  2. What unique characteristic of zero-day exploits make them so dangerous? Answer: The vulnerability is exploited before the software developer has the opportunity to provide a solution for it.
  3. What characteristic of ARP makes it particularly vulnerable to being used in a DoS attack? Answer: ARP performs no authentication.
  4. A neighbor hacks into your secured wireless network on a regular basis, but you didn’t give him the password. What loophole was most likely left open? Answer: The default password was not changed.
  5. Regarding managing security levels, why do network administrators create domain groups? Answer: To simplify the process of granting rights to users
  6. What kinds of issues might indicate a misconfigured ACL?

Answer: Connectivity and performance issues between two hosts in which some applications or ports can make the connection while others can’t

  1. Any traffic that is not explicitly permitted in the ACL is _______________, which is called the _____________________. Answer: denied, implicit deny rule
  2. What’s the difference between an IDS and an IPS? Answer: An IDS can only detect and log suspicious activity. An IPS can react when alerted to such activity.
  3. What causes most firewall failures? Answer: Firewall misconfiguration
  4. What are the two primary features that give proxy servers an advantage over NAT? Answer: Content filtering, file caching
  5. What distinguishes a virus from other types of malware? Answer: A virus can replicate itself with the intent to infect more computers.