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New Questions 6
Which DHCP option provides a TFTP server that Cisco phones can use to download a configuration?
A. DHCP Option 66
B. DHCP Option 68
C. DHCP Option 82
D. DHCP Option 57
Answer: A
New Questions 7
Given the network diagram.
Which address would successfully summarize only the networks seen?
A. 192.168.0.0/24
B. 192.168.8.0/20
C. 192.168.8.0/21
D. 192.168.12.0/20
E. 192.168.16.0/21
F. These networks cannot be summarized.
Answer: C
Explanation:
let's suppose it is a /20 then we would have addresses from 192.168.0.1 to 192.168.15.255 Now let's suppose it is a /21 then we would have addresses from 192.168.8.1 to 192.168.15.255
So both summaries encompass the networks we want to summarize but the second one is the most restrictive one as it only encompasses the networks we were asked to summarize and not others so it is the correct summary.
In fact just count the number of subnets which is 8 and find the exponent of 2 which is 8, that gives you 3 and to find out the summary mask just do /24 - 3 = /21.
if you make it in binary you'll find out the answer too: the interesting octet is 3rd one so let's convert in binary. 8 0000 1000
9 0000 1001
10 0000 1010
11 0000 1011
12 0000 1100
13 0000 1101
14 0000 1110
15 0000 1111
I've bolded the bits in common there are 5 so 16+5=21 which is mask and address is 192.168.8.0
New Questions 8
Refer to Exhibit:
Which three NTP features can be deduced on the router? (choose three)
A. only accepts time requests from 192.168.1.1
B. only handle four requests at a time
C. only is in stratum 4
D. only updates its time from 192.168.1.1
E. only accepts time requests from 192.168.1.4
F. only updates its time from 192.168.1.4
Answer: A,C,F
New Questions 9
Refer to the exhibit. A network engineer executes the show ipv6 ospf database command and is presented with the output that is shown. Which flooding scope is referenced in the link-state type?
A. link-local
B. area
C. As (OSPF domain)
D. reserved
Answer: B
New Questions 10
Which LSA type can exist only in an OSPF NSSA area?
A. type 7 LSA
B. type 1 LSA
C. type 5 LSA
D. type 3 LSA
Answer: A
New Questions 11
A network engineer applies the command ip tcp adjust-mss <bytes> under interface configuration mode. What is the result?
A. The probability of SYN packet truncation is increased.
B. The UDP session is inversely affected.
C. The probability of dropped or segmented TCP packets is decreased.
D. The optimum MTU value for the interface is set.
Answer: C
New Questions 12
Which two statements are true about 6to4 tunnels? (Choose two.)
A. In a 6to4 tunnel, the first two bytes of the IPv6 address will be 0x2002 and the next four bytes will be the hexadecimal equivalent of the IPv4 address.
B. In a 6to4 tunnel, the first two bytes of the IPv6 address will be locally derived and the next two bytes will be the hexadecimal equivalent of the IPv4 address.
C. In a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the 2002:c0a8:6301::/48 IPv6 address.
D. In a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the 2002:c0a8:6301::/16 IPv6 address.
E. In a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the 2002:1315:4463:1::/64 IPv6 address.
Answer: A,C
Explanation:
In a 6to4 tunnel, the first two bytes of the IPv6 address will be 0x2002 and the next four bytes will be the hexadecimal equivalent of the IPv4 address. The IPv4 address 192.168.99.1 would be converted to the 2002:c0a8:6301::/48 IPv6 address.
New Questions 13
Refer to the exhibit.
Which interoperability technique implemented on the router would allow Host-1 to communicate with Host-2?
A. Dual Stack
B. NAT-PT
C. 6to4 tunnel
D. GRE tunnel
E. ISATAP tunnel
Answer: B
New Questions 14
A network engineer has set up VRF-Lite on two routers where all the interfaces are in the same VRF. At a later time, a new loopback is added to Router 1, but it cannot ping any of the existing interfaces. Which two configurations enable the local or remote router to ping the loopback from any existing interface? (Choose two.)
A. adding a static route for the VRF that points to the global route table
B. adding the loopback to the VRF
C. adding dynamic routing between the two routers and advertising the loopback
D. adding the IP address of the loopback to the export route targets for the VRF
E. adding a static route for the VRF that points to the loopback interface
F. adding all interfaces to the global and VRF routing tables
Answer: A,B
New Questions 15
Which command sequence can you enter a router to configure Unicast Reverse Path Forwarding in loose mode?
A. interface GigabitEthernet0/0
ip verify unicast source reachable-via loose.
B. interface GigabitEthernet0/0
ip verify unicast source reachable-via all.
C. interface GigabitEthernet0/0
ip verify unicast source reachable-via any.
D. interface GigabitEthernet0/0
ip verify unicast source reachable-via rx.
Answer: C
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