[Nov.-2016-New]Instant Download Braindump2go 640-911 PDF Questions & Answers 220q[NQ11-NQ20]

2016/11 New CCNA Data Center 640-911 DCICN: Introducing Cisco Data Center Networking Exam Questions Updated Today!
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QUESTION 11
What are three reasons to migrate from IPv4 to IPv6? (Choose three.)

A.    IPv6 eliminates the requirement for NAT.
B.    IPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.
C.    IPv6 eliminates the need for VLANs.
D.    Hosts can be assigned an IP address without DHCP.
E.    Hosts can be assigned an IP address without DNS.

Answer: ABD
Explanation:
“IPv6 address contains 32 characters vs. 12 in IPv4.
This will grant no ip address translation and dynamic changes. We will even don’t need NAT! “
http://www.ipv6.ru/english/history/goipv6.php
” IPv6 uses a 128-bit address, allowing 2128, or approximately 3.4?038 addresses, or more than 7.9?028 times as many as IPv4, which uses 32-bit addresse”;
http://en.wikipedia.org/wiki/IPv6

QUESTION 12
Which two options describe services that are provided by TCP? (Choose two.)

A.    session multiplexing
B.    EtherTypes identify destination services
C.    connection-oriented
D.    best-effort packet delivery
E.    binary translation

Answer: AC
Explanation:
“TCP is a connection-oriented protocol.”
http://www.diffen.com/difference/TCP_vs_UDP

QUESTION 13
Which two options describe services that are provided by UDP? (Choose two.)

A.    session multiplexing
B.    segmentation
C.    connection-oriented
D.    reliable packet delivery
E.    best-effort packet delivery

Answer: AE
Explanation:
“UDP is faster because there is no error-checking for packets.” http://www.diffen.com/difference/TCP_vs_UDP

QUESTION 14
Which two options represent a subnet mask that allows for a maximum of 14 available host addresses on a subnet? (Choose two.)

A.    255.255.255.240
B.    255.255.255.192
C.    255.255.240.0
D.    255.255.192.0
E.    /14
F.    /21
G.    /26
H.    /28

Answer: AH
Explanation:
Example:
Address: 192.168.1.1
Bitmask: 28
Netmask: 255.255.255.240
Network: 192.168.1.0
HostMin: 192.168.1.1
HostMax: 192.168.1.14
Broadcast: 192.168.1.15
Hosts: 16

QUESTION 15
What is the binary value of the hexadecimal number 0x511?

A.    10100011001
B.    10101010101
C.    10110010001
D.    10100010001
E.    10100110011

Answer: D
Explanation:
Decimal 1297
Binary 10100010001
Hexadecimal 0x511
Roman MCCXCVII
Dotted decimal 0.0.5.17

QUESTION 16
What is the binary value of the decimal number 1263?

A.    11011101101
B.    10011101111
C.    10011101011
D.    11010001111
E.    10111101111

Answer: B
Explanation:
Decimal 1263
Binary 10011101111
Hexadecimal 0x4ef
Roman MCCLXIII
Dotted decimal 0.0.4.239

QUESTION 17
What are three modular Layer 2 processes in Cisco Nexus Operating System? (Choose three.)

A.    UDLD
B.    PIM
C.    HSRP
D.    STP
E.    Cisco Discovery Protocol
F.    OSPF

Answer: ADE
Explanation:
“PIM is IP routing protocol-independent and can leverage whichever unicast routing protocols are used to populate the unicast routing table, including Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF), Border Gateway Protocol (BGP), and static routes. PIM uses this unicast routing information to perform the multicast forwarding function. Although PIM is called a multicast routing protocol, it actually uses the unicast routing table to perform the RPF check function instead of building up a completely independent multicast routing table. Unlike other routing protocols, PIM does not send and receive routing updates between routers.” http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_papers/mcst_ovr.html#w p1009068
“Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol for establishing a faulttolerant default gateway.
In the configuration procedures, the specified interface must be a Layer 3 interface:” http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_55_se/configuration/guide/swhsrp.html
OSPF (Open Shortest Path First) – routing protocol.

QUESTION 18
What are three modular Layer 3 processes in Cisco Nexus Operating System? (Choose three.)

A.    UDLD
B.    PIM
C.    HSRP
D.    STP
E.    OSPF
F.    Cisco Discovery Protocol

Answer: BCE
Explanation:
“PIM is IP routing protocol-independent and can leverage whichever unicast routing protocols are used to populate the unicast routing table, including Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF), Border Gateway Protocol (BGP), and static routes. PIM uses this unicast routing information to perform the multicast forwarding function. Although PIM is called a multicast routing protocol, it actually uses the unicast routing table to perform the RPF check function instead of building up a completely independent multicast routing table. Unlike other routing protocols, PIM does not send and receive routing updates between routers.” http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_papers/mcst_ovr.html#w p1009068
“Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol for establishing a fault tolerant default gateway.
In the configuration procedures, the specified interface must be a Layer 3 interface:” http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_55_se/configuration/guide/swhsrp.html
OSPF (Open Shortest Path First) – routing protocol.

QUESTION 19
What are two default user roles in Cisco Nexus Operating System? (Choose two.)

A.    Admin
B.    Network Operator
C.    Operator
D.    Storage Operator
E.    Root
F.    System Manager

Answer: AB
Explanation:
“The Nexus 5000 Series switch provides the following default user roles:
Network-admin (superuser)–Complete read and write access to the entire Nexus 5000 Series switch.
Network-operator–Complete read access to the Nexus 5000 Series switch.” http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli_rel_4_0_1a/sec_rbac.html#wp1230629

QUESTION 20
On most keyboards, the Up arrow and Down arrow keys move through the command history. Which two key sequences can be used as alternatives? (Choose two.)

A.    Alt-A
B.    Alt-F
C.    Alt-N
D.    Alt-E
E.    Alt-P

Answer: CE
Explanation:
“Alt-P History search backwards
Alt-N History search forwards”
http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli_rel_4_0_1a/begin.html


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