GIAC SECURITY ESSENTIALS (GSEC) EXAM
GIAC SECURITY ESSENTIALS (GSEC) EXAM
2024/2025 QUESTIONS AND ANSWERS GRADED
A+
What class is the address 170.19.82.45?
B
In the address ab00:fc87:234a:0090:5120:ffab:bc8a:0098/23, what does the /23 indicate?
The number of bits in the network portion of the address
How many bits are in the NETWORK portion of the following address block:
Address: 10.1.0.0
Subnet: 255.255.255.224
27
Question 4
What can you say about the following packet capture?
14:18:25.906002 apollo.it.luc.edu.1000 > x-terminal.shell: S
1382726990:1382726990(0) win 4096
14:18:26.094731 x-terminal.shell > apollo.it.luc.edu.1000: S
,GIAC SECURITY ESSENTIALS (GSEC) EXAM
2021824000:2021824000(0) ack 1382726991 win 4096
14:18:26.172394 apollo.it.luc.edu.1000 > x-terminal.shell: R
1382726991:1382726991(0) win 0
14:18:26.507560 apollo.it.luc.edu.999 > x-terminal.shell: S
1382726991:1382726991(0) win 4096
14:18:26.694691 x-terminal.shell > apollo.it.luc.edu.999: S
2021952000:2021952000(0) ack 1382726992 win 4096
14:18:26.775037 apollo.it.luc.edu.999 > x-terminal.shell: R
1382726992:1382726992(0) win 0
14:18:26.775395 apollo.it.luc.edu.999 > x-terminal.shell: R
1382726992:1382726992(0) win 0
14:18:27.174846 x-terminal.shell > apollo.it.luc.edu.998: S
2022080000:2022080000(0) ack 1382726993 win 4096
This is a sequence number prediction attack.
In the network 192.168.5.0/23, what would be the broadcast address?
192.168.5.255
If you see the IP address fe80::0050:8790:4554:2300/16, the :: indicates what?
There are 0s between the ::.
With the following IP header, what is the destination IP address:
, GIAC SECURITY ESSENTIALS (GSEC) EXAM
45 00 03 3D 1E EB 40 00 40 06 5D E8 C0 A8 01 16 AD C2 4B 67
173.194.75.103
What is the order of messages in a three-way handshake?
SYN, SYN/ACK, ACK
Which utility makes use of ICMP to function?
traceroute
Which of the following is a private address (RFC1918)?
10.45.60.10
When you are deploying an intrusion prevention system on your network, what
is the most important criterion?
It has a low latency
A good example of a network using a mesh topology is:
The Internet
GIAC SECURITY ESSENTIALS (GSEC) EXAM
2024/2025 QUESTIONS AND ANSWERS GRADED
A+
What class is the address 170.19.82.45?
B
In the address ab00:fc87:234a:0090:5120:ffab:bc8a:0098/23, what does the /23 indicate?
The number of bits in the network portion of the address
How many bits are in the NETWORK portion of the following address block:
Address: 10.1.0.0
Subnet: 255.255.255.224
27
Question 4
What can you say about the following packet capture?
14:18:25.906002 apollo.it.luc.edu.1000 > x-terminal.shell: S
1382726990:1382726990(0) win 4096
14:18:26.094731 x-terminal.shell > apollo.it.luc.edu.1000: S
,GIAC SECURITY ESSENTIALS (GSEC) EXAM
2021824000:2021824000(0) ack 1382726991 win 4096
14:18:26.172394 apollo.it.luc.edu.1000 > x-terminal.shell: R
1382726991:1382726991(0) win 0
14:18:26.507560 apollo.it.luc.edu.999 > x-terminal.shell: S
1382726991:1382726991(0) win 4096
14:18:26.694691 x-terminal.shell > apollo.it.luc.edu.999: S
2021952000:2021952000(0) ack 1382726992 win 4096
14:18:26.775037 apollo.it.luc.edu.999 > x-terminal.shell: R
1382726992:1382726992(0) win 0
14:18:26.775395 apollo.it.luc.edu.999 > x-terminal.shell: R
1382726992:1382726992(0) win 0
14:18:27.174846 x-terminal.shell > apollo.it.luc.edu.998: S
2022080000:2022080000(0) ack 1382726993 win 4096
This is a sequence number prediction attack.
In the network 192.168.5.0/23, what would be the broadcast address?
192.168.5.255
If you see the IP address fe80::0050:8790:4554:2300/16, the :: indicates what?
There are 0s between the ::.
With the following IP header, what is the destination IP address:
, GIAC SECURITY ESSENTIALS (GSEC) EXAM
45 00 03 3D 1E EB 40 00 40 06 5D E8 C0 A8 01 16 AD C2 4B 67
173.194.75.103
What is the order of messages in a three-way handshake?
SYN, SYN/ACK, ACK
Which utility makes use of ICMP to function?
traceroute
Which of the following is a private address (RFC1918)?
10.45.60.10
When you are deploying an intrusion prevention system on your network, what
is the most important criterion?
It has a low latency
A good example of a network using a mesh topology is:
The Internet
