Download Interconnecting Cisco Networking Devices Part 1 (ICND1 v3-0).testking.100-105.2019-04-25.1e.320q.vcex


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Exam Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0)
Number 100-105
File Name Interconnecting Cisco Networking Devices Part 1 (ICND1 v3-0).testking.100-105.2019-04-25.1e.320q.vcex
Size 24.32 Mb
Posted April 25, 2019
Downloads 460


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Demo Questions

Question 1
Which address type does a switch use to make selective forwarding decisions?

  • A: destination IP address
  • B: source MAC address
  • C: source IP address
  • D: source and destination IP address
  • E: destination MAC address
Correct Answer: E
Switches analyze the destination MAC to make its forwarding decision since it is a layer 2 device. 
Routers use the destination IP address to make forwarding decisions.



Question 2
In which two ways does TCP differ from UDP? (Choose two.)

  • A: TCP provides synchronized communication.
  • B: TCP segments are essentially datagrams.
  • C: TCP provides sequence numbering of packets.
  • D: TCP uses broadcast delivery.
  • E: TCP provides best effort delivery.
Correct Answer: AC
TCP differs from UDP in the following ways: TCP provides best effort delivery.
TCP provides synchronized communication. TCP segments are essentially datagrams. 
TCP provides sequence numbering of packets. TCP uses broadcast delivery.



Question 3
On a Cisco switch, which protocol determines if an attached VoIP phone is from Cisco or from another vendor?

  • A: CDP
  • B: RTP
  • C: UDP
  • D: TCP
Correct Answer: A
The Cisco Unified IP Phone uses CDP to communicate information such as auxiliary VLAN ID, per port power management details, and Quality of Service (QoS) configuration information with the Cisco Catalyst switch.



Question 4
Which MTU size can cause a baby giant error?

  • A: 1500
  • B: 9216
  • C: 1600
  • D: 1518
Correct Answer: C
Standard Ethernet frame MTU is 1500 bytes. This does not include the Ethernet header and Cyclic Redundancy Check (CRC) trailer, which is 18 bytes in length, to make the total Ethernet frame size of 1518. In this document, MTU size or packet size refers only to Ethernet payload. Ethernet frame size refers to the whole Ethernet frame, including the header and the trailer. Baby giant frames refer to Ethernet frame size up to 1600 bytes, and jumbo frame refers to Ethernet frame size up to 9216 bytes. 
Reference: http://www.cisco.com/c/en/us/support/docs/switches/catalyst-4000-series-switches/29805-175.html



Question 5
Which statement about static routes is true?

  • A: The source interface can be configured to make routing decisions.
  • B: A subnet mask is entered for the next-hop address.
  • C: The subnet mask is 255.255.255.0 by default.
  • D: The exit interface can be specified to indicate where the packets will be routed.
Correct Answer: D
Static routing can be used to define an exit point from a router when no other routes are available or necessary. This is called a default route.



Question 6
Which two statements describe the IP address 10.16.3.65/23? (Choose two.)

  • A: The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
  • B: The last valid host address in the subnet is 10.16.2.254 255.255.254.0.
  • C: The network is not subnetted.
  • D: The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
  • E: The subnet address is 10.16.3.0 255.255.254.0.
Correct Answer: AD
The mask 255.255.254.0 (/23) used with a Class A address means that there are 15 subnet bits and 9 host bits. The block size in the third octet is 2 (256 - 254). So this makes the subnets in 0, 2, 4, 6, etc., all the way to 254. The host 10.16.3.65 is in the 2.0 subnet. The next subnet is 4.0, so the broadcast address for the 2.0 subnet is 3.255. The valid host addresses are 2.1 through 3.254



Question 7
Which NAT type is used to translate a single inside address to a single outside address?

  • A: dynamic NAT
  • B: NAT overload
  • C: PAT
  • D: static NAT
Correct Answer: D
Network address translation (NAT) is the process of modifying IP address information in IP packet headers while in transit across a traffic routing device. 
There are two different types of NAT:
NAT 
PAT 
Static NAT is used to statically map a single IP address on the inside to a single outside IP address.



Question 8
Which option is a valid hostname for a switch?

  • A: 5witch-Cisco
  • B: Switch-Cisco!
  • C: 5witchCisc0
  • D: SwitchCisc0
Correct Answer: D
Hostnames can’t start with a number and can’t have special characters (bangs/exclamation) (but can have a dash). 
A  starts with a number. 
B has a bang at the end. 
C starts with a number. 
Only D is correct.



Question 9
Which function enables an administrator to route multiple VLANs on a router?

  • A: IEEE 802.1X
  • B: HSRP
  • C: port channel
  • D: router on a stick
Correct Answer: D



Question 10
Which RFC was created to alleviate the depletion of IPv4 public addresses?

  • A: RFC 4193
  • B: RFC 1519
  • C: RFC 1518
  • D: RFC 1918
Correct Answer: D
RFC 1918 references private IP addressing schemes such as NAT. RFC 1518 simply covers the usage of CIDR, or how to use address blocks more efficiently while RFC 1918 is specifically referred to as a stopgap to avert the crisis of IPv4 addresses.






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