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2021 Aug 312-50v8 free exam
Q81. A Buffer Overflow attack involves:
A. Using a trojan program to direct data traffic to the target host's memory stack
B. Flooding the target network buffers with data traffic to reduce the bandwidth available to legitimate users
C. Using a dictionary to crack password buffers by guessing user names and passwords
D. Poorly written software that allows an attacker to execute arbitrary code on a target system
Answer: D
Q82. Exhibit:
Based on the following extract from the log of a compromised machine, what is the hacker really trying to steal?
A. har.txt
B. SAM file
C. wwwroot
D. Repair file
Answer: B
Q83. 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?
A. The.gateway is not routing to a public IP address.
B. The computer is using an invalid IP address.
C. The gateway and the computer are not on the same network.
D. The computer is not using a private IP address.
Answer: A
Q84. TCP SYN Flood attack uses the three-way handshake mechanism.
1. An attacker at system A sends a SYN packet to victim at system B.
2. System B sends a SYN/ACK packet to victim A.
3. As a normal three-way handshake mechanism system A should send an ACK packet to system B, however, system A does not send an ACK packet to system B. In this case client B is waiting for an ACK packet from client A.
This status of client B is called _________________
A. "half-closed"
B. "half open"
C. "full-open"
D. "xmas-open"
Answer: B
Q85. You want to know whether a packet filter is in front of 192.168.1.10. Pings to 192.168.1.10 don't get answered. A basic nmap scan of 192.168.1.10 seems to hang without returning any information. What should you do next?
A. Run NULL TCP hping2 against 192.168.1.10
B. Run nmap XMAS scan against 192.168.1.10
C. The firewall is blocking all the scans to 192.168.1.10
D. Use NetScan Tools Pro to conduct the scan
Answer: A
Improved 312-50v8 sample question:
Q86. A hacker is attempting to see which ports have been left open on a network. Which NMAP switch would the hacker use?
A. -sO
B. -sP
C. -sS
D. -sU
Answer: A
Q87. A bank stores and processes sensitive privacy information related to home loans..However, auditing has never been enabled on the system.. What is the first step that the bank should take before.enabling.the audit feature?
A. Perform a vulnerability scan of the system.
B. Determine the impact of enabling the audit feature.
C. Perform a cost/benefit analysis of the audit feature.
D. Allocate funds for staffing of audit log review.
Answer: B
Q88. Which of the following tool would be considered as Signature Integrity Verifier (SIV)?
A. Nmap
B. SNORT
C. VirusSCAN
D. Tripwire
Answer: D
Q89. Jake is a network administrator who needs to get reports from all the computer and network devices on his network. Jake wants to use SNMP but is afraid that won't be secure since passwords and messages are in clear text. How can Jake gather network information in a secure manner?
A. He can use SNMPv3
B. Jake can use SNMPrev5
C. He can use SecWMI
D. Jake can use SecSNMP
Answer: A
Q90. Which NMAP command combination would let a tester scan every TCP port from a class C network that is blocking ICMP with fingerprinting and service detection?
A. NMAP.-PN -A -O -sS 192.168.2.0/24
B. NMAP.-P0 -A -O -p1-65535 192.168.0/24
C. NMAP.-P0 -A -sT -p0-65535 192.168.0/16
D. NMAP.-PN -O -sS -p 1-1024 192.168.0/8
Answer: B