Cisco Cisco Certifications 210-250 Questions & Answers

• Question 791:

  Which two actions in response to traffic sent to a nonlistening UDP port are valid? (Choose two.)

  A. ICMP parameter problem

  B. UDP packet with the RST flag set

  C. ICMP source quench

  D. It does not send a reply.

  E. ICMP destination unreachable

  Correct Answer: AD

• Question 792:

  You receive an email at work from your bank that states that your account credentials expire soon. You are given instructions to click a link to update your credentials. Which type of attack is this email?

  A. denial of service

  B. host-profiling

  C. phishing

  D. man-in-the-middle

  Correct Answer: C

• Question 793:

  You encounter a security alert that traffic with a known TOR exit node has occurred on the network. Which option is the biggest risk?

  A. users downloading copyrighted content

  B. ransomware communicating after infection

  C. data exfiltration

  D. user circumvention of the firewall

  Correct Answer: C

• Question 794:

  Which two flags set in TCP datagrams are valid ways to close a TCP session? (Choose two.)

  A. SYN flag

  B. FIN flag

  C. RST flag

  D. ECT flag

  E. PSH flag

  Correct Answer: BC

• Question 795:

  Which property of a cryptographic hash algorithm is desirable?

  A. collision resistance

  B. reversibility

  C. nondeterminism

  D. rainbow tables

  Correct Answer: A

• Question 796:

  Which type of data typically consists of connection level, application-specific records generated from network traffic?

  A. location data

  B. statistical data

  C. alert data

  D. transaction data

  Correct Answer: B

• Question 797:

  What may an increase in IPv4 traffic carrying protocol 41 indicate?

  A. additional PPTP traffic due to Windows clients

  B. deployment of a GRE network on top of an existing Layer 3 network

  C. attempts to tunnel IPv6 traffic through an IPv4 network

  D. unauthorized peer-to-peer traffic

  Correct Answer: C

• Question 798:

  

  Refer to the exhibit. During an analysis of a password database, this table of usernames and password hashes is found. Which users have the same password?

  A. jhallman and thallman

  B. administrator and jhallman

  C. administrator, console, and jhallman

  D. console and thallman

  Correct Answer: B

• Question 799:

  Which type of attack affects the availability of the target?

  A. SQL injection

  B. cross-site scripting

  C. social engineering

  D. denial of service

  Correct Answer: D

• Question 800:

  DNS query uses which protocol

  A. TCP

  B. UDP

  C. HTTP

  D. ICMP

  Correct Answer: B