CCNA 1 ACTUAL QUESTIONS AND CORRECT ANSWERS COMPLETE STUDY GUIDE

CCNA 1 ACTUAL QUESTIONS AND
CORRECT ANSWERS COMPLETE STUDY
GUIDE

●● Which part of an Ethernet frame detects errors in the frame?
Answer: Frame check sequence


●● Which part of an Ethernet Frame describes the higher-layer protocol
that is encapsulated?
Answer: Ethertype


●● Which part of an Ethernet Frame notifies the receiver to get ready for
a new frame?
Answer: preamble


●● Which data link sublayer controls the network interface through
software drivers?
Answer: LLC


●● Which data link sublayer works with the upper layers to add
application information for delivery of data to higher level protocols?
Answer: LLC

, ●● What is a function of the MAC sublayer? (Choose three.)
Answer: controls access to the media/checks for errors in received
bits/uses CSMA/CD or CSMA/CA to support Ethernet technology


●● What are two methods for switching data between ports on a switch?
(Choose two.)
Answer: cut-through switching / store-and-forward switching


●● Which switching method can be implemented using fast-forward
switching or fragment-free switching?
Answer: cut-through switching


●● Which two types of memory buffering techniques are used by
switches? (Choose two.)
Answer: port-based memory buffering/ shared memory buffering


●● What feature automatically negotiates the best speed and duplex
setting between interconnecting devices?
Answer: autonegotiation


●● Which network device makes forwarding decisions based on the
destination MAC address that is contained in the frame?
Answer: switch