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GIAC GPEN Exam - Topic 5 Question 73 Discussion

Actual exam question for GIAC's GPEN exam
Question #: 73
Topic #: 5
[All GPEN Questions]

You want to run the nmap command that includes the host specification of 202.176.56-57.*. How many hosts will you scan?

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Suggested Answer: C

by Maddie at Jul 08, 2025, 06:20 PM

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Salina
5 months ago
I thought it was 256 at first.
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Emeline
5 months ago
Totally agree, it's 512!
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Gertude
6 months ago
There are 512 hosts in that range.
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Kris
6 months ago
Wait, are you sure? Seems like a lot.
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Goldie
6 months ago
Nope, definitely 512.
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Anissa
6 months ago
I feel like I practiced a similar question, but I can't remember if it was about the total number of hosts or just the range.
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Bettina
6 months ago
If I remember correctly, each subnet can have 256 addresses, so that would be 512 for both 56 and 57, right?
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Elmira
7 months ago
I remember something about the last octet having 256 possible addresses, but I can't recall if that's for each subnet or combined.
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Vivienne
7 months ago
I think the range 56-57 means we're looking at two different subnets, but I'm not sure how many hosts that gives us.
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Wei
7 months ago
Okay, I think I've got it. The host specification 202.176.56-57.* means I need to scan the two subnets, 202.176.56.0/24 and 202.176.57.0/24, which is a total of 512 hosts.
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Ozell
7 months ago
Ugh, I'm not too confident on this one. I know nmap can do range scans, but I'm not sure how to interpret that host specification. I'll have to review my notes and try to work this out.
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Kerry
7 months ago
I've got this! The host specification 202.176.56-57.* means I need to scan the range of IP addresses from 202.176.56.0 to 202.176.57.255, which is a total of 512 hosts.
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Matthew
8 months ago
Okay, I'm a bit confused on this one. The question mentions 202.176.56-57.*, so I'm not sure if that means I need to scan all the hosts in that range or just the two subnets. I'll have to double-check the nmap syntax to be sure.
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Ricki
8 months ago
Hmm, let me think this through. The host specification includes a range of 56-57, so that's 2 subnets. Each subnet has 256 possible hosts, so the total number of hosts to scan would be 512.
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Jacquline
10 months ago
I agree with Royce, the correct answer is A) 256 because each octet covers 256 addresses.
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Royce
10 months ago
But if we consider the IP range, it covers 256 addresses for each octet, so it should be A) 256.
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Juliann
10 months ago
C) 1024 is the way to go! Might as well do a full sweep of the network while we're at it. What's the worst that could happen?
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Ashlee
8 months ago
B) 512
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Elroy
9 months ago
A) 256
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Kris
10 months ago
I disagree, I believe the answer is B) 512.
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Kara
10 months ago
D) 64 seems too low, and A) 256 is too simple. I'm going with B) 512 - gotta cover all those IP addresses!
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Dorcas
8 months ago
Yeah, I agree. 512 seems like the best option for scanning all those IP addresses.
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Sheridan
8 months ago
512 sounds good to me as well. Better safe than sorry.
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Gretchen
8 months ago
I think B) 512 is the right choice too. Can't miss any potential hosts.
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Royce
10 months ago
I think the answer is A) 256.
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Wei
11 months ago
I think the answer is C) 1024. That's a lot of hosts to scan, but nmap is pretty fast, right?
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Barb
10 months ago
That's good to know. I'll go ahead and run the command to scan all 1024 hosts.
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Xenia
10 months ago
Yes, nmap is known for its speed in scanning large number of hosts.
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Brock
10 months ago
I think the answer is C) 1024. That's a lot of hosts to scan, but nmap is pretty fast, right?
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Doyle
10 months ago
D) 64
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Twila
10 months ago
C) 1024
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Madonna
10 months ago
B) 512
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Janine
10 months ago
A) 256
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