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[Latest Dumps] High Quality Cisco 640-911 Dumps Exam Practice Materials And Youtube Demo Free Update

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Vendor: Cisco
Certifications: CCNA Data Center
Exam Name: Introducing Cisco Data Center Networking
Exam Code: 640-911
Total Questions: 208 Q&As
640-911 dumps
QUESTION 1
In an IEEE 802.3 Ethernet frame, what is the significance of the DSAP field?
A. The DSAP field specifies the TCP or UDP port that is associated with the transport protocol.
B. The DSAP field is only used on United States Department of Defense networks to indicate the information classification level.
C. The DSAP field is only used in Ethernet II frames.
D. The DSAP field indicates the network layer protocol.
Correct Answer: D

QUESTION 2
What are two advantages of employing an external router for inter-VLAN routing over an IEEE 802.1Q trunk link? (Choose two.)
A. Layer 3 functionality is not required on the switch.
B. The router facilitates communication between VLANs.
C. The single traffic path is optimized.
D. Latency is reduced as packets leave the switch.
E. Equal-Cost Multipath is supported.
Correct Answer: AB

QUESTION 3
What action does a switch take if the destination MAC address is unknown? 640-911 dumps
A. Discard frame
B. Send ICMP unreachable message to source
C. Flood packet on all ports
D. Compare destination IP address against an ACL to determine if it is permitted
E. Send gratuitous ARP on all ports and wait for reply before forwarding
Correct Answer: C

QUESTION 4
What is required to allow devices that are using RFC 1918 addresses to communicate over the Internet?
A. A private to public VLAN must be defined on the Internet border device.
B. The Internet firewall must permit RFC 1918 addresses.
C. VLAN translation is required on the Internet border device.
D. Network address translation is required on the Internet border device.
Correct Answer: D

QUESTION 5
Which command displays the Trunking Native Mode VLAN on port Ethernet 1/18?
A. show running-config switchport e1/18
B. show running-config e1/18 switchport
C. show interface e1/18
D. show interface e1/18 switchport
E. show interface e1/18 native
Correct Answer: D

QUESTION 6
What are two features of a bridge? (Choose two.)
A. Reliable transmission
B. Operate at OSI Layer 2
C. Operate at OSI Layer 3
D. Create multiple broadcast domains
E. Create multiple collision domains
F. Flood input packets to all ports
G. Drop IP packets with invalid destination ports
Correct Answer: BE

QUESTION 7
What are two attributes of a VLAN? 640-911 dumps (Choose two.)
A. A VLAN defines a collision domain.
B. A VLAN defines a broadcast domain.
C. Broadcasts are flooded to all VLANs.
D. Collisions are flooded to all VLANs.
E. A Layer 3 device is required to route packets between VLANs.
F. A Layer 2 device is required to route packets between VLANs.
Correct Answer: BE

QUESTION 8
What are three reasons that switches supersede bridges? (Choose three.)
A. Smaller frame buffers decrease latency.
B. Forward, filter, or flood frames.
C. Multiple simultaneous communications between ports.
D. Larger inspection engine allows for higher throughput.
E. Switches have many ports.
Correct Answer: BCE

QUESTION 9
Which four statements indicate unique properties of VLAN 1 on Cisco Nexus switches? (Choose four.)
A. VLAN 1 is used to flood multicast traffic.
B. VLAN 1 cannot be deleted.
C. VLAN 1 is used for Cisco Discovery Protocol.
D. VLAN 1 is used for VTP advertisements.
E. VLAN 1 defines a collision domain.
F. VLAN 1 defines a broadcast domain.
Correct Answer: BCDF

QUESTION 10
Which field in an Ethernet II frame performs the same function as the DSAP field in an 802.3 Ethernet frame?
A. Start of frame
B. EtherType
C. Frame check sequence
D. Subnetwork Access Protocol
E. Logical Link Control
Correct Answer: B

QUESTION 11
Which two statements describe the purpose of RFC 1918? 640-911 dumps (Choose two.)
A. Establish a range of IP addresses that are dedicated to the growing use of multicast video.
B. Establish a range of IP addresses that are dedicated to the growing use of peer-to-peer file- sharing applications.
C. Establish a range of IP addresses that are dedicated to use on internal networks.
D. Establish a range of IP addresses to address the shrinking pool of globally routable addresses.
E. Delay the transition to IPv6.
Correct Answer: CD

QUESTION 12
Which statement describes the purpose of the MAC address forwarding table of a switch?
A. The switch consults the forwarding table to determine the best route to a destination.
B. The switch consults the forwarding table to determine the output port.
C. The switch consults the forwarding table to determine if the packet is routable.
D. The switch consults the forwarding table to determine if access control permits the packet.
Correct Answer: B

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