Cisco 200-301 Exam Dumps, Practice Test Questions

Changing a route might bypass the link but cannot diagnose or correct an out-of-spec physical channel or inconsistent link partner settings.

A VLAN permission list governs logical transport of tagged frames, not electrical signal integrity on overlength copper pairs.

IP MTU changes packet sizing and possible fragmentation; they cannot correct corrupted FCS bits caused by cable loss or PHY mismatch.

RIB attributes do not expose corrupted Ethernet frame detection.

Packet totals cannot distinguish valid from corrupted frames as specifically as FCS error counters.

STP state does not enumerate the received frame-check-sequence failures on the link.

VLAN membership does not explain late collisions and errors from forced half/full duplex disagreement.

OSPF timers are unrelated to an Ethernet duplex mismatch at the PHY/MAC layer.

Gateway selection does not fix peer speed and duplex disagreement.

Duplex compatibility matters for errors, but matching duplex settings does not report the presently negotiated rate.

CRC/FCS counters expose frame-integrity problems, not the operational PHY bit rate.

Both ports are already up; administrative state cannot distinguish negotiated 100-Mb/s from 1-Gb/s service.

Average throughput may appear normal during brief observation even when low optical receive power causes intermittent physical errors. It does not directly measure the optical receive level in dBm as supported transceiver DOM telemetry does.

A tagged VLAN restriction is independent of the requested transceiver optical receive level.

Routing metrics do not expose the module’s digital optical monitoring readings.

An administratively disabled interface may have no live traffic, so CRC counts cannot establish shutdown configuration.

Changing speed does not enable a port administratively disabled by shutdown.

Remote route availability cannot distinguish a locally disabled interface from a cable failure.

Flow control cannot declare missing bytes successfully received; increasing the advertised window alone does not recover lost sequence data.

TCP reliability cannot be replaced by an implicit conversion into UDP; that would change the transport service and lose the stated guarantee.

SYN setup establishes the initial connection but does not rerun for each lost data segment or provide the data-retransmission operation.

TCP restores lost segments and ordered delivery, which can delay later bytes when packets are missing.

Receive-window tuning controls flow, not the reliability and retransmission semantics specified in the question.

Selective acknowledgments help TCP identify missing data for retransmission; they do not turn it into an unretransmitted datagram transport.

Retransmission repairs lost data in an established stream; the three observed setup flags establish initial sequence state instead.

UDP itself supplies no SYN, SYN-ACK or ACK transport handshake and does not create connection state from these flags.

A receive window limits in-flight data after establishment; it does not explain the specific SYN/SYN-ACK/ACK opening sequence.

TCP connections use unicast endpoints; a single TCP connection to a multicast group is not the required one-to-many datagram service.

A TCP three-way handshake is not how multicast receivers join a group and TCP does not create the proposed group connection.

Unicast datagrams target one address and are not spontaneously replicated to other hosts as an IP multicast group service.

Congestion-window control protects the network against excessive traffic, whereas the receiving host advertises its own available buffer capacity using a separate receive window.

Selective acknowledgment improves identification of received and missing data after loss, but it does not convey how much outstanding data the receiver can buffer.

Retransmission recovers lost segments; by itself it does not limit the sender to the receive capacity explicitly advertised in ACKs.