What does a PTR record do?

Maps an IP address to a domain name

How can dig be used for DNS reconnaissance?

To query specific DNS record types

What is an MX record used for in DNS?

Storing information about mail servers

What is the difference between a public and private IP address?

Public IPs are unique, private IPs are not routable externally

What is the purpose of robots.txt on a website?

Preventing search engines from indexing certain pages

What is the purpose of a DNS A record?

To map a domain to an IPv4 address

What is the Google Hacking Database (GHDB)?

A resource for advanced Google search techniques

How is a DHCP server involved in networking?

It assigns IP addresses dynamically

What is the purpose of a CNAME record in DNS?

Maps an alias to a canonical name

What does the term "default gateway" refer to?

The router that connects a network to external networks

How does traceroute assist in reconnaissance?

By identifying the path packets take to a destination

What is an ARIN WHOIS search used for?

Retrieving domain registration information

Which of the following is an example of active reconnaissance?

Scanning a website for open ports

What is the primary goal of reconnaissance in cybersecurity?

To gather information about a target

What does the /16 subnet mask represent?

65,534 usable host IP addresses

What is a subnet mask?

A method to identify network and host portions of an IP address

How can DNS be used for reconnaissance?

By resolving IP addresses to domain names

How does subnetting improve security?

By creating separate networks that isolate traffic

What is the main benefit of using CIDR notation?

It enables flexible subnetting and efficient IP address allocation

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Cyb1 - Unit 7 Review

33 termsStudBud Administration

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Questions 33

Answers

1
Which IP address is a broadcast address in a subnet?
The first IP after the range
The midpoint IP in the range
The lowest IP in the range
The highest IP in the range
2
What does the nslookup tool do?
Encrypts DNS queries
Blocks malicious IPs
Retrieves DNS records
Monitors network traffic
3
What is a common indicator of a DNS poisoning attack?
Redirected web traffic
Increased broadcast traffic
Slow network speed
Unauthorized IP address changes
4
What is a common reconnaissance method for DNS?
Broadcasting
Zone transfer
Encryption
Compression
5
What does a PTR record do?
Maps an IP address to a domain name
Redirects traffic to another domain
Maps a domain name to an IP address
Blocks unauthorized queries
6
How can dig be used for DNS reconnaissance?
To spoof DNS records
To encrypt DNS traffic
To blacklist domains
To query specific DNS record types
7
What is an MX record used for in DNS?
Storing information about mail servers
Preventing DNS spoofing
Mapping an alias to another domain
Translating domain names to IP addresses
8
Which notation represents a subnet mask in slash format?
/24
255.255.255.0
127.0.0.1
192.168.1.0
9
What is the difference between a public and private IP address?
Public IPs are static, private IPs are dynamic
Public IPs are used within a private network, private IPs are external
Public IPs are faster than private IPs
Public IPs are unique, private IPs are not routable externally
10
What does the /30 subnet mask provide?
16 usable IP addresses
8 usable IP addresses
4 usable IP addresses
2 usable IP addresses
11
How can a website owner secure their site against reconnaissance?
Use weak passwords
Encrypt sensitive files
Remove the robots.txt file
Regularly update software
12
What is the purpose of robots.txt on a website?
Preventing search engines from indexing certain pages
Allowing access to private directories
Encrypting website data
Blocking malicious IP addresses
13
Which IP address is reserved for localhost?
255.255.255.255
192.168.1.1
127.0.0.1
0.0.0.0
14
What is the purpose of a DNS A record?
To map a domain to an IPv6 address
To map a domain to an IPv4 address
To redirect traffic to another domain
To store email server information
15
What is the Google Hacking Database (GHDB)?
A database of Google search vulnerabilities
A repository of DNS records
A resource for advanced Google search techniques
A collection of malicious scripts
16
How is a DHCP server involved in networking?
It resolves domain names to IP addresses
It blocks unauthorized traffic
It assigns IP addresses dynamically
It encrypts network traffic
17
What is the purpose of a CNAME record in DNS?
Maps an alias to a canonical name
Redirects a domain to a login page
Resolves domain names to IPv6 addresses
Stores mail exchange server details
18
What does the term "default gateway" refer to?
The DNS server for a network
The router that connects a network to external networks
The broadcast address in a subnet
The IP address of a device
19
How does traceroute assist in reconnaissance?
By blocking malicious IPs
By resolving domain names to IP addresses
By encrypting data packets
By identifying the path packets take to a destination
20
What does TTL in DNS records stand for?
Time To Live
Time Transfer Log
Truncate Transfer Level
Total Transfer Log
21
What is an ARIN WHOIS search used for?
Testing IP connectivity
Encrypting internet traffic
Retrieving domain registration information
Querying DNS records
22
Which of the following is an example of active reconnaissance?
Reading public blog posts
Searching for company employees on LinkedIn
Checking the WHOIS database
Scanning a website for open ports
23
What tool can retrieve IP address ownership data?
ping
whois
tracert
netstat
24
What is the primary goal of reconnaissance in cybersecurity?
To monitor network performance
D. To install malicious software
To gather information about a target
To destroy a network
25
What does the /16 subnet mask represent?
16 usable host IP addresses
1,024 usable host IP addresses
256 usable host IP addresses
65,534 usable host IP addresses
26
What is a subnet mask?
D. A list of IP addresses for a network
A device to block unauthorized access
A tool for encrypting IP traffic
A method to identify network and host portions of an IP address
27
What does DNS stand for?
Data Node Structure
Domain Name System
Domain Network Service
Digital Network Security
28
What is the range of private IP addresses in Class A?
172.16.0.0 - 172.31.255.255
10.0.0.0 - 10.255.255.255
1.0.0.0 - 1.255.255.255
192.168.0.0 - 192.168.255.255
29
How can DNS be used for reconnaissance?
By encrypting domain names
By detecting intrusions
By resolving IP addresses to domain names
By providing additional login security
30
How does subnetting improve network performance?
By increasing network traffic
By reducing broadcast domains
By enabling larger IP ranges
By disabling DNS queries
31
How does subnetting improve security?
By blocking unauthorized DNS queries
By increasing available IP addresses
By encrypting data transmissions
By creating separate networks that isolate traffic
32
What does the IP address 0.0.0.0 represent?
A loopback address
A broadcast address
An undefined or default route
A network ID
33
What is the main benefit of using CIDR notation?
It enables flexible subnetting and efficient IP address allocation
It allows for classful IP address assignment
It prevents IP address conflicts
It simplifies DNS zone transfers

Cyb1 - Unit 7 Review Flashcards | StudBud