Fourth

Question 1

What is attempting an injection attack on a web server based on responses to True/False questions called?

Answer 1

Blind SQLi

Question 2

The establishment of a TCP connection involves a negotiation called three-way handshake. What type of message does the client send to the server in order to begin this negotiation?

Answer 2

SYN

Question 3

You need a tool that can do network intrusion prevention and intrusion detection, function as a network sniffer, and record network activity. What tool would you most likely select?

Answer 3

Snort

Question 4

Which of the following will perform an Xmas scan using NMAP?

Answer 4

nmap -sX 192.168.1.254

Question 5

Code injection is a form of attack in which a malicious user:

Answer 5

Inserts text into a data field that gets interpreted as code

Question 6

The collection of potentially actionable, overt, and publicly available information is known as

Answer 6

Open-source intelligence

Question 7

Which one of the following Google advanced search operators allows an attacker to restrict the results to those websites in the given domain?

Answer 7

[site:]

Question 8

This asymmetry cipher is based on factoring the product of two large prime numbers. What cipher is described above?

Answer 8

RSA

Question 9

Firewalls are the software or hardware systems that are able to control and monitor the traffic coming in and out the target network based on pre-defined set of rules. Which of the following types of firewalls can protect against SQL injection attacks?

Answer 9

Web application firewall

Question 10

During a recent security assessment, you discover the organization has one Domain Name Server (DNS) in a Demilitarized Zone (DMZ) and a second DNS server on the internal network. What is this type of DNS configuration commonly called?

Answer 10

Split DNS

Question 11

In which of the following cryptography attack methods, the attacker makes a series of interactive queries, choosing subsequent plaintexts based on the information from the previous encryptions?

Answer 11

Chosen-plaintext attack

Question 12

Which of the following attacks exploits web page vulnerabilities that allow an attacker to force an unsuspecting user’s browser to send malicious requests they did not intend?

Answer 12

Cross-Site Request Forgery (CSRF)

Question 13

Which is the first step followed by Vulnerability Scanners for scanning a network?

Answer 13

Checking if the remote host is alive

Question 14

Shellshock allowed an unauthorized user to gain access to a server. It affected many Internet-facing services, which OS did it not directly affect?

Answer 14

Windows

Question 15

Alice encrypts her data using her public key PK and stores the encrypted data in the cloud. Which of the following attack scenarios will compromise the privacy of her data?

Answer 15

Alice also stores her private key in the cloud, and Harry breaks into the cloud server as before

Question 16

A hacker named Jack is trying to compromise a bank’s computer system. He needs to know the operating system of that computer to launch further attacks. What process would help him?

Answer 16

Banner grabbing

Question 17

What two conditions must a digital signature meet?

Answer 17

Has to be unforgeable, and to be authentic

Question 18

Bob, a network administrator at BigUniversity, realized that some students are connecting their notebooks in the wired network to have Internet access. In the university campus, there are many Ethernet ports available for professors and authorized visitors but not for students. He identified this when the IDS alerted for malware activities in the network. What should Bob do to avoid this problem?

Answer 18

Use the 802.1x protocol

Question 19

Which of the following Bluetooth hacking techniques does an attacker use to send messages to users without the recipient’s consent, similar to email spamming?

Answer 19

Bluejacking

Question 20

Which method of password cracking takes the most time and effort?

Answer 20

Brute force

Question 21

Which of the following program infects the system boot sector and the executable files at the same time?

Answer 21

Multipartite virus

Question 22

You are a Penetration Tester and are assigned to scan a server. You need to use a scanning technique wherein the TCP Header is split into many packets so that it becomes difficult to detect what the packets are meant for. Which of the below scanning technique will you use?

Answer 22

IP Fragment scanning

Question 23

An IT employee got a call from one of our best customers. The caller wanted to know about the company’s network infrastructure, systems, and team. New opportunities of integration are in sight for both company and customer. What should this employee do?

Answer 23

The employee should not provide any information without previous management authorization

Question 24

You perform a scan of your company’s network and discover that TCP port 123 is open. What services by default run on TCP port 123?

Answer 24

Network Time Protocol

Question 25

Based on the below log, which of the following sentences are true?

Mar 1, 2016, 7:33:28 AM 10.240.250.23 – 54373 10.249.253.15 – 22 tcp_ip

Answer 25

Application is SSH and 10.240.250.23 is the client and 10.249.253.15 is the server

Question 26

You have successfully comprised a server having an IP address of 10.10.0.5. You would like to enumerate all machines in the same network quickly. What is the best Nmap command you will use?

Answer 26

nmap -T4 -F 10.10.0.0/24

Question 27

……..is an attack type for a rogue Wi-Fi access point that appears to be a legitimate one offered on the premises, but actually has been set up to eavesdrop on wireless communications. It is the wireless version of the phishing scam. An attacker fools wireless users into connecting a laptop or mobile phone to a tainted hotspot by posing as a legitimate provider. This type of attack may be used to steal the passwords of unsuspecting users by either snooping the communication link or by phishing, which involves setting up a fraudulent web site and luring people there. Fill in the blank with appropriate choice

Answer 27

Evil Twin Attack

Question 28

DNS cache snooping is a process of determining if the specified resource address is present in the DNS cache records. It may be useful during the examination of the network to determine what software update resources are used, thus discovering what software is installed. What command is used to determine if the entry is present in DNS cache?

Answer 28

nslookup -norecursive update.antivirus.com

Question 29

You are working as a Security Analyst in a company XYZ that owns the whole subnet range of 23.0.0.0/8 and 192.168.0.0/8. While monitoring the data, you find a high number of outbound connections. You see that IP’s owned by XYZ (Internal) and private IP’s are communicating to a Single Public IP. Therefore, the Internal IP’s are sending data to the Public IP. After further analysis, you find out that this Public IP is a blacklisted IP, and the internal communicating devices are compromised. What kind of attack does the above scenario depict?

Answer 29

Botnet attack

Question 30

Which of the following is an adaptive SQL Injection testing technique used to discover coding errors by inputting massive amounts of random data and observing the changes in the output?

Answer 30

Fuzzing testing

Question 31

Some clients of TPNQM SA were redirected to a malicious site when they tried to access the TPNQM main site. Bob, a system administrator at TPNQM SA, found that they were victims of DNS Cache Poisoning. What should Bob recommend to deal with such a threat?

Answer 31

The use of DNSSEC

Question 32

In which of the following password protection technique, random strings of characters are added to the password before calculating their hashes?

Answer 32

Salting

Question 33

Which Nmap option would you use if you were not concerned about being detected and wanted to perform a very fast scan?

Answer 33

-T5

Question 34

Which of the following provides a security professional with most information about the system’s security posture?

Answer 34

Port scanning, banner grabbing, service identification

Question 35

What is the most common method to exploit the “Bash Bug” or “ShellShock” vulnerability?

Answer 35

Through Web servers utilizing CGI (Common Gateway Interface) to send a malformed environment variable to a vulnerable Web server

Question 36

What term describes the amount of risk that remains after the vulnerabilities are classified and the countermeasures have been deployed?

Answer 36

Residual risk

Question 37

A hacker has managed to gain access to a Linux host and stolen the password file from /etc/passwd. How can he use it?

Answer 37

The password file does not contain the passwords themselves

Question 38

A technician is resolving an issue where a computer is unable to connect to the Internet using a wireless access point. The computer is able to transfer files locally to other machines, but cannot successfully reach the Internet. When the technician examines the IP address and default gateway they are both on the 192.168.1.0/24. Which of the following has occurred?

Answer 38

The gateway is not routing to a public IP address

Question 39

Chandler works as a pen-tester in an IT-firm in New York. As a part of detecting viruses in the systems, he uses a detection method where the anti-virus executes the malicious codes on a virtual machine to simulate CPU and memory activities. Which type of virus detection method did Chandler use in this context?

Answer 39

Code emulation

Question 40

An attacker scans a host with the below command. Which three flags are set? (Choose three.)
#nmap –sX host.domain.com

Answer 40

This is Xmas scan. URG, PUSH and FIN are set

Question 41

Due to a slowdown of normal network operations, the IT department decided to monitor internet traffic for all of the employees. From a legal standpoint, what would be troublesome to take this kind of measure?

Answer 41

Not informing the employees that they are going to be monitored could be an invasion of privacy

Question 42

Which component of IPsec performs protocol-level functions that are required to encrypt and decrypt the packets?

Answer 42

Internet Key Exchange (IKE)

Question 43

An attacker, using a rogue wireless AP, performed an MITM attack and injected an HTML code to embed a malicious applet in all HTTP connections. When users accessed any page, the applet ran and exploited many machines. Which one of the following tools the hacker probably used to inject HTML code?

Answer 43

Ettercap

Question 44

You are monitoring the network of your organizations. You notice that:
1. There are huge outbound connections from your Internal Network to External IPs
2. On further investigation, you see that the external IPs are blacklisted
3. Some connections are accepted, and some are dropped
4. You find that it is a CnC communication
Which of the following solution will you suggest?

Answer 44

Update the latest signatures on your IDS/IPS.

Clean the malware which are trying to communicate with the external blacklist IP’s

Question 45

Security Policy is a definition of what it means to be secure for a system, organization or other entity. For Information Technologies, there are sub-policies like Computer Security Policy, Information Protection Policy, Information Security Policy, network Security Policy, Physical Security Policy, Remote Access Policy, and User Account Policy. What is the main theme of the sub-policies for Information Technologies?

Answer 45

Confidentiality, Integrity, Availability

Question 46

Which of the following antennas is commonly used in communications for a frequency band of 10 MHz to VHF and UHF?

Answer 46

Yagi antenna

Question 47

Why should the security analyst disable/remove unnecessary ISAPI filters?

Answer 47

To defend against webserver attacks

Question 48

Which of the following security policies defines the use of VPN for gaining access to an internal corporate network?

Answer 48

Remote access policy

Question 49

To determine if a software program properly handles a wide range of invalid input, a form of automated testing can be used to randomly generate invalid input in an attempt to crash the program. What term is commonly used when referring to this type of testing?

Answer 49

Fuzzing

Question 50

If you want only to scan fewer ports than the default scan using Nmap tool, which option would you use?

Answer 50

-F

Question 51

In Risk Management, how is the term “likelihood” related to the concept of “threat?”

Answer 51

Likelihood is the probability that a threat-source will exploit a vulnerability.

Question 52

Which of the following statements is TRUE?

Answer 52

Sniffers operate on Layer 2 of the OSI model

Question 53

What is the least important information when you analyze a public IP address in a security alert?

Answer 53

ARP

Question 54

You are the Network Admin, and you get a complaint that some of the websites are no longer accessible. You try to ping the servers and find them to be reachable. Then you type the IP address and then you try on the browser, and find it to be accessible. But they are not accessible when you try using the URL. What may be the problem?

Answer 54

Traffic is blocked on UDP port 53

Question 55

Internet Protocol Security IPSec is actually a suite of protocols. Each protocol within the suite provides different functionality. Collective IPSec does everything except.

Answer 55

Work at the data link layer