Lernkartei CCNA 200-125 (Seite 1 von 12)

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Which entity assigns IPv6 addresses to end users?

APNIC

ISPs

RIR

ICANN

Which two statements describe the IP address 10.16.3.65/23? (Select two)

The subnet address is 10.16.3.0 255.255.254.0.

The lowest host address in the subnet is 10.16.2.1 255.255.254.0.

The last valid host address in the subnet is 10.16.2.254 255.255.254.0.

The broadcast address of the subnet is 10.16.3.255 255.255.254.0.

The network is not subnetted.

Which command can you use to manually assign a static IPV6 address to a router interface?

ipv6 autoconfig

ipv6 address PREFIX_1::1/64

ipv6 autoconfig 2001:db8:2222:7272::72/64

ipv6 address 2001:db8:2222:7272::72/64

Which statements are true regarding ICMP packets? (Select two)

They are encapsulated within IP datagrams.

TRACERT uses ICMP packets.

They guarantee datagram delivery.

They acknowledge receipt of TCP segments.

They are encapsulated within UDP datagrams.

Which device allows users to connect to the network using a single or double radio?

Switch

Firewall

Wireless controller

Access point

What is the correct routing match to reach 172.16.1.5/32?

the default route.

172.16.1.0/25

172.16.1.0/26

172.16.1.0/24

Which destination IP address can a host use to send one message to multiple devices across different subnets?

127.0.0.1

172.20.1.0

239.255.0.1

192.168.0.119

Which two are features of IPv6?(Choose two)

Anycast

Allcast

Podcast

Multicast

Broadcast

How many bits are contained in each field of an IPv6 address?

24

4

8

16

View the Exhibit. All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? (Choose three)

The IP address 172.16.1.205 can be assigned to hosts in VLAN1.

The subnet mask in use is 255.255.255.128.

The subnet mask in use is 255.255.255.192.

The IP address 172.16.1.25 can be assigned to hosts in VLAN1.

The LAN interface of the router is configured with multiple IP addresses.

Which two features can dynamically assign IPv6 addresses? (Choose two.)

NHRP

IPv6 stateless autoconfiguration

DHCP

IPv6 stateful autoconfiguration

ISATAP tunneling

A new subnet with 60 hosts has been added to the network. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses?

192.168.1.56/27

192.168.1.56/26

192.168.1.64/27

192.168.1.64/26

View the exhibit. All of the routers in the network are configured with the ip subnetzero command. Which network addresses should be used for Link A and Network A? (Select two)

Link A 172.16.3.0/30

Link A 172.16.3.12/30

Network A 172.16.3.128/25

Network A 172.16.3.48/26

Which two statements about wireless LAN controllers are true? (Choose two.)

They can simplify the management and deployment of wireless LANs.

They must be configured through a GUI over HTTP or HTTPS.

They rely on external firewalls for WLAN security.

They are best suited to smaller wireless networks.

They can manage mobility policies at a systemwide level.

The network administrator is asked to configure 113 point-to-point links. Which IP addressing scheme best defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses?

10.10.0.0/25 subnetted with mask 255.255.255.252

10.10.0.0/23 subnetted with mask 255.255.255.252

10.10.0.0/16 subnetted with mask 255.255.255.252

10.10.0.0/24 subnetted with mask 255.255.255.252

10.10.0.0/18 subnetted with mask 255.255.255.252

What are three features of the IPV6 protocol? (Choose three)

Complicated header

Autoconfiguration

Plug-and-play

No broadcasts

Checksums

What is the subnet address for the IP address 172.19.20.23/28?

172.19.20.20

172.19.20.0

172.19.20.15

172.19.20.32

172.19.20.16

Which network topology allows all traffic to flow through a central hub?

Ring

Bus

Mesh

Star

Which two statements about IPv6 router advertisement messages are true? (Choose two.)

They use ICMPv6 type 134.

The advertised prefix length must be 48 bits.

Their destination is always the link-local address of the neighboring node.

They are sourced from the configured IPv6 interface address.

The advertised prefix length must be 64 bits.

Which of these represents an IPv6 link-local address?

FEFE:0345:5f1b::e14d:3d69

FE81::280f:512b:e14f:3d69

FE08::280e:611:a:f14f:3d69

FE80::380e:611a:e14f:3d69

What will happen if a private IP address is assigned to a public interface connected to an ISP?

The NAT process will be used to translate this address to a valid IP address.

A conflict of IP addresses happens, because other public routers can use the same range.

Only the ISP router will have the capability to access the public network.

Addresses in a private range will not be routed on the Internet backbone.

Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication?

Application

Session

Network

Transport

Presentation

Drag-n-drop. Match the terms on the left with the appropriate OSI layer on the right. (Not all options are used.)

Network: Packets, IP addresses, Routing

Transport: UPD, Segments, Windowing

Which command can you enter to display duplicate IP addresses that the DHCP server assigns?

show ip dhcp server statistics

show ip dhcp database 10.0.2.12

show ip dhcp binding 10.0.2.12

show ip dhcp conflict 10.0.2.12

Which two statements about IPv4 multicast traffic are true? (Choose two.)

It is bandwidth-intensive.

It burdens the source host without affecting remote hosts.

It uses a minimum amount of network bandwidth.

It simultaneously delivers multiple streams of data.

It is the most efficient way to deliver data to multiple receivers.

View the exhibit. A network has been planned as shown. Which three statements accurately describe the areas and devices in the network plan? (Select three)

Network Device B is a hub.

Network Device A is a hub.

Area 1 contains a Layer 2 device.

Area 2 contains a Layer 2 device.

Network Device A is a switch.

How does TCP differ from UDP? (Choose two.)

TCP uses broadcast delivery.

TCP provides best effort delivery.

TCP segments are essentially datagrams.

TCP provides sequence numbering of packets.

TCP provides synchronized communication.

Which IPv6 address is valid?

2031::130F::9C0:876A:130B

2001:0DB8:0000:130F:0000:0000:08GC:140B

2031:0:130F::9C0:876A:130B

2001:0DB8:0:130H::87C:140

Host 1 is trying to communicate with Host 2. The e0 interface on the Charlie router is down. Which of the following are true? (Choose two)

Charlie will send a Router Selection message type.

Charlie will use ICMP to inform Host 1, Alpha, and Bravo that Host 2 cannot be reached.

Charlie will send a Destination Unreachable message type.

Charlie will use ICMP to inform Bravo that Host 2 cannot be reached.

Charlie will use ICMP to inform Host 1 that Host 2 cannot be reached.

What must occur before a workstation can exchange HTTP packets with a web server?

A UDP connection must be established between the workstation and the web server.

A TCP connection must be established between the workstation and the web server.

A TCP connection must be established between the workstation and its default gateway.

An ICMP connection must be established between the workstation and its default gateway.

A UDP connection must be established between the workstation and its default gateway.

How is an EUI-64 format interface ID created from a 48-bit MAC address?

by appending 0xFF to the MAC address.

by inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address.

by prefixing the MAC address with 0xF and inserting 0xF after each of its first three bytes.

by prefixing the MAC address with 0xFFEE.

by prefixing the MAC address with 0xFF and appending 0xFF to it.

You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?

192.168.252.8 255.255.255.248

192.168.252.0 255.255.255.252

192.168.252.8 255.255.255.252

192.168.252.16 255.255.255.252

192.168.252.16 255.255.255.240

What are three characteristics of the TCP protocol? (Choose three.)

It ensures that all data is transmitted and received by the remote device.

It supports significantly higher transmission speeds than UDP.

The connection is established before data is transmitted.

It uses separate SYN and ACK messages to establish a connection.

It requires applications to determine when data packets must be retransmitted.

What is the alternative notation for the IPV6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72?

B514:82C3::0029:EC7A:EC72

B514:82C3::0029:EC7A:0:EC72

B514:82C3:0029:EC7A:EC72

B514:82C3:0029::EC7A:0000:EC72

You are working in a data center environment and are assigned the address range 10.188.31.0/23.You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each. Which IP address range meets these requirements?

10.188.31.0/29

10.188.31.0/28

10.188.31.0/27

10.188.31.0/26

10.188.31.0/25

Which command can you enter to verify that a 128-bit address is live and responding?

ping

traceroute

telnet

ping ipv6

Where does routing occur within the DoD TCP/IP reference model?

Network

Application

Internet

Transport

Which two benefits are provided by using a hierarchical network addressing scheme? (Select two)

dedicated communications between devices

ease of management and troubleshooting

efficient utilization of MAC addresses

reduces routing table entries

auto-negotiation of media rates

Which three are characteristics of an IPv6 anycast address? (Select three)

The same address for multiple devices in the group.

Delivery of packets to the group interface that is closest to the sending device.

One-to-nearest communication model.

A unique IPv6 address for each device in the group.

Any-to-many communication model.

In which three ways is an IPv6 header simpler than an IPv4 header? (Choose three.)

IPv6 headers use a smaller Option field size than IPv4 headers.

IPv6 headers use a 4-bit TTL field, and IPv4 headers use an 8-bit TTL field.

Unlike IPv4 headers, IPv6 headers have a fixed length.

IPv6 uses an extension header instead of the IPv4 Fragmentation field.

IPv6 headers eliminate the IPv4 Checksum field.

CCNA 200-125

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