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Q51. - (Topic 7)
Which statement about a router on a stick is true?
A. Its date plane router traffic for a single VI AN over two or more switches.
B. It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs on the same subnet.
C. It requires the native VLAN to be disabled.
D. It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs.
Answer: D
Explanation:
https://www.freeccnaworkbook.com/workbooks/ccna/configuring-inter-vlan-routing-router-on-a-stick
Q52. - (Topic 1)
Refer to the exhibit.
Mary is sending an instant message to Robert. The message will be broken into a series of packets that will traverse all network devices. What addresses will populate these packets as they are forwarded from Router1 to Router2?
A. Option A
B. Option B
C. Option C
D. Option D
E. Option E
Answer: B
Explanation:
The Source and Destination IP address is not going to change. Host 1 IP address will stay
as being the source IP and the Host 2 IP address will stay the destination IP address.
Those two are not going to change.
For the MAC address it is going to change each time it goes from one hope to another.
(Except switches... they don't change anything)
Frame leaving HOST 1 is going to have a source MAC of Host 1 and a destination MAC of
Router 1.
Router 1 is going to strip that info off and then will make the source MAC address of Router1's exiting interface, and making Router2's interface as the destination MAC address. Then the same will happen... Router2 is going to change the source/destination info to the source MAC being the Router2 interface that it is going out, and the destination will be Host2's MAC address.
Q53. - (Topic 3)
Which parameter or parameters are used to calculate OSPF cost in Cisco routers?
A. Bandwidth
B. Bandwidth and Delay
C. Bandwidth, Delay, and MTU
D. Bandwidth, MTU, Reliability, Delay, and Load
Answer: A
Explanation:
The well-known formula to calculate OSPF cost is Cost = 108/ Bandwidth
Q54. - (Topic 3)
Which statements are TRUE regarding Internet Protocol version 6 (IPv6) addresses? (Choose three.)
A. An IPv6 address is divided into eight 16-bit groups.
B. A double colon (::) can only be used once in a single IPv6 address.
C. IPv6 addresses are 196 bits in length.
D. Leading zeros cannot be omitted in an IPv6 address.
E. Groups with a value of 0 can be represented with a single 0 in IPv6 address.
Answer: A,B,E
Explanation:
IPv6 addresses are divided into eight 16-bit groups, a double colon (::) can only be used
once in an IPv6 address, and groups with a value of 0 can be represented with a single 0 in
an IPv6 address.
The following statements are also true regarding IPv6 address:
IPv6 addresses are 128 bits in length.
Eight 16-bit groups are divided by a colon (:).
Multiple groups of 16-bit 0s can be represented with double colon (::).
Double colons (::) represent only 0s.
Leading zeros can be omitted in an IPv6 address.
The option stating that IPv6 addresses are 196 bits in length is incorrect. IPv6 addresses
are 128 bits in length.
The option stating that leading zeros cannot be omitted in an IPv6 address is incorrect.
Leading zeros can be omitted in an IPv6 address.
Q55. - (Topic 3)
What is the OSPF default frequency, in seconds, at which a Cisco router sends hello packets on a multi-access network?
A. 10
B. 40
C. 30
D. 20
Answer: A
Explanation:
On broadcast multiacess and point-to-point links, the default is 10 seconds. On NBMA, the default is 30 seconds.
Q56. - (Topic 2)
A switch has 48 ports and 4 VLANs. How many collision and broadcast domains exist on the switch (collision, broadcast)?
A. 4, 48
B. 48, 4
C. 48, 1
D. 1, 48
E. 4, 1
Answer: B
Explanation:
A switch uses a separate collision domain for each port, and each VLAN is a separate broadcast domain.
Topic 3, Routing Fundamentals
Q57. - (Topic 3)
Which of the following IP addresses are valid Class B host addresses if a default Class B mask is in use? (Choose two.)
A. 10.6.8.35
B. 133.6.5.4
C. 192.168.5.9
D. 127.0.0.1
E. 190.6.5.4
Answer: B,E
Explanation:
The IP addresses 133.6.5.4 and 190.6.5.4 are both valid Class B addresses when a default mask is in use. The Class B default mask is 255.255.0.0 and the range of valid addresses is 128.0.0.0-
191.255.255.255.
The IP address 10.6.8.35 is a Class A address. The Class A default mask is 255.0.0.0 and
the range of valid addresses is 1.0.0.0 - 127.255.255.255, with the exception of the range
127.0.0.1 - 127.255.255.255, which is reserved and cannot be assigned.
The IP address 192.168.5.9 is a Class C address. The Class C default mask is
255.255.255.0 and the range of valid addresses is 192.0.0.0 - 223.255.255.255.
The IP address 127.0.0.1 is a Class A address, but it comes from a reserved portion that
cannot be assigned.
The range 127.0.0.1 - 127.255.255.255 is used for diagnostics, and although any address
in the range will work as a diagnostic address, 127.0.0.1 is known as the loopback address.
If you can ping this address, or any address in the 127.0.0.1 - 127.255.255.255 range, then
the NIC is working and TCP/IP is installed. The Class A default mask is 255.0.0.0 and the range of valid addresses is 1.0.0.0 - 127.255.255.255, with the exception of the range
127.0.0.1 - 127.255.255.255, which is reserved and cannot be assigned.
Q58. - (Topic 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
Answer: D
Explanation:
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
Q59. - (Topic 7)
By default, how many MAC addresses are permitted to be learned on a switch port with port security enabled?
A. 8
B. 2
C. 1
D. 0
Answer: C
Q60. - (Topic 3)
Refer to the exhibit.
Which command would you use to configure a static route on Router1 to network 192.168.202.0/24 with a nondefault administrative distance?
A. router1(config)#ip route 1 192.168.201.1 255.255.255.0 192.168.201.2
B. router1(config)#ip route 192.168.202.0 255.255.255.0 192.168.201.2 1
C. router1(config)#ip route 5 192.168.202.0 255.255.255.0 192.168.201.2
D. router1(config)#ip route 192.168.202.0 255.255.255.0 192.168.201.2 5
Answer: D
Explanation:
The default AD for a static route is 1. To change this, configure a different value to be used as the AD at the very end of the “ip route” statement.
