You save $69.98
At a municipal utility, the migration lead must limit a bursty noncritical application to a maximum contractual rate by dropping excess packets. During review, someone proposes: "Use only a longer DHCP lease as the rate limiter." Which technical explanation most directly shows why this proposal does not solve the requirement?
DHCP leases do not shape packet throughput. The effective remedy is to use traffic policing with the intended rate and drop/remark action.
VLAN naming does not police traffic. It concerns a different proposed change, not the change being evaluated.
Policing measures offered traffic against a rate and can drop or remark nonconforming bursts. This observation would apply to another device or feature, not the proposed use only a longer dhcp lease as the rate limiter. For this scenario, dHCP leases do not shape packet throughput is the direct cause.
Classification labels packets but does not enforce a rate. A true general network fact is not necessarily the direct diagnosis. The named change was use only a longer dhcp lease as the rate limiter, whose relevant defect is that dHCP leases do not shape packet throughput.
At a bank branch, the migration lead must smooth outbound bursts toward a provider that permits an average bit rate and has a queue to absorb excess. During review, someone proposes: "Use policing in place of a required queue, assuming no drops." Which technical explanation most directly shows why this proposal does not solve the requirement?
Policing may drop traffic rather than queue it. The effective remedy is to use traffic shaping at the egress interface with a configured target rate.
Disabling marking does not implement shaping. It concerns a different proposed change, not the change being evaluated.
Snooping controls untrusted DHCP responses, not traffic serialization rate. A true general network fact is not necessarily the direct diagnosis. The named change was use policing in place of a required queue, assuming no drops, whose relevant defect is that policing may drop traffic rather than queue it.
Shaping queues excess packets for later transmission to smooth the send rate instead of immediately dropping all excess. That distinction is technically relevant elsewhere, but it does not identify the failure of the proposed use policing in place of a required queue, assuming no drops. The actual issue is that policing may drop traffic rather than queue it.
At a municipal utility, an implementation partner needs voice traffic to get prompt serialization on a congested egress link. During review, someone proposes: "Use only a different TCP source port without QoS policy." Which technical explanation most directly shows why this proposal does not solve the requirement?
A port change alone does not reserve scheduling priority. The effective remedy is to classify real-time voice and apply an appropriate priority queue with safeguards.
Uniform priority removes differentiation and risks starvation. This observation would apply to another device or feature, not the proposed use only a different tcp source port without qos policy. For this scenario, a port change alone does not reserve scheduling priority is the direct cause.
Low-latency prioritization reduces voice queuing delay when correctly engineered. A true general network fact is not necessarily the direct diagnosis. The named change was use only a different tcp source port without qos policy, whose relevant defect is that a port change alone does not reserve scheduling priority.
DNS caching does not change packet queue service. It concerns a different proposed change, not the change being evaluated.
At a logistics provider, the on-call technician wants applications to carry a standardized IP packet class indicator across hops. During review, someone proposes: "Change only the VLAN description and treat it as DSCP." Which technical explanation most directly shows why this proposal does not solve the requirement?
VLAN text labels do not set IP class bits. The effective remedy is to mark traffic using an appropriate DSCP value and verify subsequent devices honor it.
Marking is a classification hint; each hop must implement scheduling/policing as designed. A true general network fact is not necessarily the direct diagnosis. The named change was change only the vlan description and treat it as dscp, whose relevant defect is that vLAN text labels do not set IP class bits.
Time service hierarchy is unrelated to data forwarding priority. It concerns a different proposed change, not the change being evaluated.
DSCP encodes per-hop class intent in the IP header, but policy must be consistent along the path. This observation would apply to another device or feature, not the proposed change only the vlan description and treat it as dscp. For this scenario, vLAN text labels do not set IP class bits is the direct cause.
At an engineering company, a network administrator needs to measure which packets belong to voice, transactional data, and background copies before deciding forwarding treatment. During review, someone proposes: "Apply one default marking value to everything with no traffic matches." Which technical explanation most directly shows why this proposal does not solve the requirement?
Uniform marking loses the intended service distinction. The effective remedy is to classify flows using defined match criteria and separate traffic classes.
Interface labels do not identify applications by themselves. That distinction is technically relevant elsewhere, but it does not identify the failure of the proposed apply one default marking value to everything with no traffic matches. The actual issue is that uniform marking loses the intended service distinction.
Classification identifies traffic categories; later policy can apply marking, queueing or rate limits. This observation would apply to another device or feature, not the proposed apply one default marking value to everything with no traffic matches. For this scenario, uniform marking loses the intended service distinction is the direct cause.
DHCP leases do not classify in-flight traffic. It concerns a different proposed change, not the change being evaluated.
At a logistics provider, the site engineer is hardening VTY lines 1 through 4 on a Cisco router for authenticated encrypted remote administration. Which configuration pattern is suitable?
SSH on IOS requires suitable device identity/key generation and authentication on VTY lines; transport input ssh restricts allowed remote protocol. Key sizes and platform crypto support must match policy.
Permitting all transports and disabling login removes required authentication and may expose plaintext management.
A cleartext line password plus Telnet is not an encrypted, robust administrative session.
Telnet transmits management data without SSH confidentiality and does not satisfy encrypted remote login.
At a university, the on-call technician needs only staff in an authorized management subnet to administer the IOS device over an untrusted routed path. Which practice best meets both confidentiality and source restriction?
SSH encrypts VTY access, and a source-control list further limits the management attack surface. Both transport security and authorization matter.
CDP is link-neighbor discovery and does not encrypt terminal traffic.
Plain HTTP is not a substitute for encrypted SSH access.
A password does not encrypt a Telnet session, so credentials and commands remain visible on-path.
At an insurance company, the migration lead has enabled SSH but an audit requires evidence that the router accepts secure remote administration instead of Telnet. What should be verified?
show ip ssh and VTY configuration indicate SSH server status and permitted transport; a session test confirms reachability and authentication.
ICMP echo proves only some IP reachability, not SSH port, cryptographic negotiation or credentials.
Spanning tree has no knowledge of SSH server configuration.
DHCP address lifetime is unrelated to SSH key cryptography.
At a design agency, the campus network lead tries SSH to a newly configured router, but the device reports no RSA key material for the service. What is the direct configuration prerequisite?
Cisco IOS SSH services require cryptographic key material; hostname/domain identification is part of common RSA key generation setup.
Descriptions do not generate host cryptographic keys, so SSH may remain unavailable.
Logging verbosity does not configure SSH key pairs.
Routing can supply a path but does not turn on the SSH daemon or keys.
At a public library, an implementation partner is hardening VTY lines 0 through 4 on a Cisco router for authenticated encrypted remote administration. Which configuration pattern is suitable?
SSH on IOS requires suitable device identity/key generation and authentication on VTY lines; transport input ssh restricts allowed remote protocol. Key sizes and platform crypto support must match policy.
Permitting all transports and disabling login removes required authentication and may expose plaintext management.
Telnet transmits management data without SSH confidentiality and does not satisfy encrypted remote login.
A cleartext line password plus Telnet is not an encrypted, robust administrative session.
An IOS router has five VTY sessions numbered 0 through 4. Access should require local named user authentication, allow only SSH, and accept incoming VTY connections only from addresses matched by standard ACL 37. Which configuration applies that policy to every VTY line?
VTY range 0–4 covers all five lines. `login local` uses configured named users, `transport input ssh` disallows Telnet, and `access-class 37 in` filters incoming management origins.
This only applies to VTY line 4, leaving lines 0–3 outside the requested policy.
Telnet is unencrypted and disabling login undermines authentication.
Allowing all remote transports and removing source filtering violates both restrictions.
or Guarantee your success by buying the full version which covers the full latest pool of questions. (760 Questions, Last Updated on Nov 4, 2026)
Please check your mailbox for a message from support@examlabs.com and follow the directions.
