210-250 practice test

1. Question 1 · 1

   Which definition of a fork in Linux is true?

   Choose one answer.

   • daemon to execute scheduled commands
   • parentdirectory name of a file path name
   • macros for manipulating CPU sets
   • new process created by a parent process

2. Question 2 · 1

   Which two terms are types of cross site scripting attacks? (Choose two.)

   Choose all answers that apply.

   • directed
   • encoded
   • stored
   • reflected
   • cascaded

3. Question 3 · 1

   Which of the following is a TCP-injection attack?

   Choose one answer.

   • Forging a TCP packet over an HTTPS session
   • Replacing legitimate TCP traffic with forged TCP packets
   • The addition of a forged TCP packet to an existing TCP session
   • Modifying the TCP/IP in a way that is unexpected by security detection

4. Question 4 · 1

   What determines the class of an IP address?

   Choose one answer.

   • the number of bits in the host field
   • the subnet mask
   • the most significant bit (MSB) pattern
   • the third octet

5. Question 5 · 1

   Which one of the following options is the Class C private IP range?

   Choose one answer.

   • 192.168.0.0 – 192.168.255.255
   • 172.16.0.0 – 172.31.255.255
   • 10.0.0.0 – 10.255.255.255
   • 192.168.1.0 – 192.168.1.255

6. Question 6 · 1

   A host using an IP address from the private IP range needs to connect to a website on the Internet. What function must be performed in order for the device to connect to the web service?

   Choose one answer.

   • ACL
   • NAT
   • PBR
   • PfR

7. Question 7 · 1

   Which tool is commonly used by threat actors on a webpage to take advantage of the software vulnerabilities of a system to spread malware?

   Choose one answer.

   • exploit kit
   • root kit
   • vulnerability kit
   • script kiddie kit

8. Question 8 · 1

   Which one of these source ports does a client dynamically use when it connects to a server that is listening on a well-known port?

   Choose one answer.

   • ephemeral
   • registered
   • well-known
   • first available port on the client system

9. Question 9 · 1

   How many messages are exchanged in a DHCP transaction?

   Choose one answer.

   • one
   • two
   • three
   • four

10. Question 10 · 1

    Which one of the following options describes the protocol and port that is used by DNS?

    Choose one answer.

    • TCP 53
    • UDP 53
    • UDP 53 and TCP 53
    • any registered port

11. Question 11 · 1

    Which term represents a potential danger that could take advantage of a weakness in a system?

    Choose one answer.

    • vulnerability
    • risk
    • threat
    • exploit

12. Question 12 · 1

    In which one of the following layers of the OSI model does the router primarily operate?

    Choose one answer.

    • Layer 2
    • Layer 3
    • Layer 4
    • Layer 7

13. Question 13 · 1

    Which three types of devices can do network address translation (NAT)? (Choose three.)

    Choose all answers that apply.

    • routers
    • Layer 3 switches
    • bridges
    • wireless access points
    • proxy servers
    • firewalls

14. Question 14 · 1

    Which TCP flag(s) must be set in a packet in order for the packet to match an ACL entry that contains the established keyword?

    Choose one answer.

    • SYN only
    • ACK only
    • RST only
    • SYN or ACK
    • ACK or RST

15. Question 15 · 1

    Which two of the following statements are true regarding the DHCP relay agent? (Choose two.)

    Choose all answers that apply.

    • DHCP relay is required if the DHCP clients and the DHCP servers are located in the same broadcast domain
    • The DHCP server uses the ciaddr IP address to select an IP address pool from which to assign the IP addresses to the DHCP client.
    • The primary function of a DHCP relay agent is to relay the DHCP messages from the local DHCP clients to the remote DHCP servers.
    • DHCP discovery messages are broadcasted from the DHCP relay agent to the DHCP servers.
    • When the DHCP relay agent receives a broadcast packet from a connected client, it changes the giaddr field from zero to the relay agent IP address, and forwards the message to the DHCP server.

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