CCNA Flashcards
A network engineer must create a diagram of a multivendor network. Which command must be configured on the Cisco devices so that the topology of the network can be mapped?
A. Device(config)# lldp run
B. Device(config)# cdp run
C. Device(config)# cdp enable
D. Device(config)# flow-sampler-map topology
A
Which feature on the Cisco Wireless LAN Controller when enabled restricts management access from specific networks?
A. CPU ACL
B. TACACS
C. Flex ACL
D. RADIUS
A
When a site-to-site VPN is used, which protocol is responsible for the transport of user data?
A. IKEv2
B. IKEv1
C. IPsec
D. MD5
C
How do TCP and UDP differ in the way that they establish a connection between two endpoints?
A. TCP uses the three-way handshake, and UDP does not guarantee message delivery.
B. TCP uses synchronization packets, and UDP uses acknowledgement packets
C. UDP provides reliable message transfer, and TCP is a connectionless protocol.
D. UDP uses SYN, SYN ACK, and FIN bits in the frame header while TCP uses, SYN, SYN ACK, and ACK bits.
A
What are two reasons that cause late collisions to increment on an Ethernet interface? (choose two)
A. When the sending device waits 15 seconds before sending the frame again.
B. When the cable length limits are exceeded.
C. When one side of the connection is configured for half-duplex.
D. When Carrier Sense Multiple Access/Collision Detection is used
E. When a collision occurs after the 32nd byte of a frame has been transmitted
B & C
A Cisco IP phone received untagged data traffic from an attached PC. Which action is taken by the phone?
A. It allows the traffic to pass through unchanged
B. It drops the traffic
C. It tags the traffic with the default VLAN
D. It tags the traffic with the native VLAN
A
What benefit does controller-based networking provide versus traditional networking?
A. provides an added layer of security to protect from DDoS attacks
B. combines controls dn data plane functionality on a single device to minimize latency
C. moves from a two-tier to a three-tier network architecture to provide maximum redendance
D. allows configuration and monitoring of the network from one centralized point
D
