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Exam 102-500 All Questions

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Exam 102-500 topic 1 question 85 discussion

Actual exam question from LPI's 102-500
Question #: 85
Topic #: 1
[All 102-500 Questions]

What is true regarding public and private SSH keys? (Choose two.)

  • A. For each user account, there is exactly one key pair that can be used to log into that account.
  • B. The private key must never be revealed to anyone.
  • C. Several different public keys may be generated for the same private key.
  • D. To maintain the private key's confidentiality, the SSH key pair must be created by its owner.
  • E. To allow remote logins, the user's private key must be copied to the remote server.
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Suggested Answer: BD 🗳️

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Mchoeti
2 months ago
Selected Answer: BD
B and D .-.. Dudes please understand NEVER NEVER ever give your private key to anyone else..
upvoted 3 times
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aris74
4 months, 4 weeks ago
Selected Answer: BD
B,D is correct for this question but i think in general that a private key can be associated with multiple public keys
upvoted 1 times
blk_542
1 day, 4 hours ago
from what I read, they are mathematically related to each other, so what encrypted by one can only be unencrypted by the other, so the relation is 1:1
upvoted 1 times
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drliu1202
10 months, 2 weeks ago
Selected Answer: BD
Option A is wrong. For example. ## halof:~ # tree /etc/ssh /etc/ssh ├── moduli ├── ssh_config ├── ssh_host_dsa_key ├── ssh_host_dsa_key.pub ├── ssh_host_ecdsa_key ├── ssh_host_ecdsa_key.pub ├── ssh_host_ed25519_key ├── ssh_host_ed25519_key.pub ├── ssh_host_rsa_key ├── ssh_host_rsa_key.pub └── sshd_config 0 directories, 11 files ## Option B is an answer. The private key must be not readable by anyone except the owner and root. Otherwise, SSH will throw a warning. Option C is wrong. Only one public key is paired with one private key. Both of them are generated at the same time by their owner via SSH-gen. Option D is correct. As explained above. Option E is wrong. The public key should be copied to the remote SSH server. The private key must be kept private.
upvoted 4 times
drliu1202
10 months ago
https://learning.lpi.org/en/learning-materials/102-500/110/110.3/110.3_01/
upvoted 2 times
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amindiashvili
1 year, 1 month ago
B and C
upvoted 1 times
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