Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Exhibit
Device management config: line vty 0 4 transport input telnet ssh login local SNMP community: public RO Management IP: 198.51.100.14/32 reachable from WAN Requirement: administrators must manage the device remotely without exposing credentials in transit.
Based on the exhibit, which change should be made first to secure remote administration of the network device?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Enable FTP so administrators can upload and download configuration files securely.
FTP is not encrypted, so it does not protect management credentials or session data in transit.
B
Best answer
Disable Telnet and allow SSHv2 only for remote administration.
SSHv2 encrypts the management session, while Telnet sends credentials and commands in clear text.
C
Distractor review
Open the management interface to any internet host as long as the password is complex.
A strong password does not prevent interception or reduce the exposure created by public management access.
D
Distractor review
Use one shared local administrator account for all network engineers.
Shared accounts harm accountability and do not improve the security of the remote management channel.
Common exam trap
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Technical deep dive
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
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Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Standard ACLs match source addresses.
What is the correct answer to this question?
The correct answer is: Disable Telnet and allow SSHv2 only for remote administration. — The immediate priority is to remove Telnet and permit SSHv2 only. Telnet transmits usernames, passwords, and commands in clear text, so it directly conflicts with the requirement to avoid exposing credentials in transit. SSHv2 provides encryption and better integrity for remote administration sessions. The other issues, such as SNMP community strings and WAN exposure, also need attention, but replacing Telnet is the first necessary step shown by the exhibit. Why others are wrong: FTP is also insecure and does not solve the problem. Opening management to all internet hosts increases risk even if passwords are strong. A shared administrator account reduces accountability and still leaves the protocol exposure unchanged.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
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