Cisco CCNA 200-301 Questions & Answers

• Question 1211:

  What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72?

  A. B514 : 82C3 : 0029 : EC7A : EC72 B. B514 : 82C3 :: 0029 : EC7A : EC72

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

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

  Correct Answer: D

  There are two ways that an IPv6 address can be additionally compressed: compressing leading zeros and substituting a group of consecutive zeros with a single double colon (::). Both of these can be used in any number of combinations to notate the same address. It is important to note that the double colon (::) can only be used once within a single IPv6 address notation. So, the extra 0's can only be compressed once.

• Question 1212:

  Which IPv6 address is valid?

  A. 2001:0db8:0000:130F:0000:0000:08GC:140B

  B. 2001:0db8:0:130H::87C:140B

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

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

  Correct Answer: D

  An IPv6 address is represented as eight groups of four hexadecimal digits, each group representing 16 bits (two octets). The groups are separated by colons (:). An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334. The leading 0's in a group can be collapsed using ::, but this can only be done once in an IP address.

• Question 1213:

  Which option is a valid IPv6 address?

  A. 2001:0000:130F::099a::12a

  B. 2002:7654:A1AD:61:81AF:CCC1

  C. FEC0:ABCD:WXYZ:0067::2A4

  D. 2004:1:25A4:886F::1

  Correct Answer: D

  An IPv6 address is represented as eight groups of four hexadecimal digits, each group representing 16 bits (two octets). The groups are separated by colons (:). An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334. The leading 0's in a group can be collapsed using ::, but this can only be done once in an IP address.

• Question 1214:

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

  A. one-to-many communication model

  B. one-to-nearest communication model

  C. any-to-many communication model

  D. a unique IPv6 address for each device in the group

  E. the same address for multiple devices in the group

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

  Correct Answer: BEF

  A new address type made specifically for IPv6 is called the Anycast Address. These IPv6 addresses are global addresses, these addresses can be assigned to more than one interface unlike an IPv6 unicast address. Anycast is designed to send a packet to the nearest interface that is a part of that anycast group. The sender creates a packet and forwards the packet to the anycast address as the destination address which goes to the nearest router. The nearest router or interface is found by using the metric of a routing protocol currently running on the network. However in a LAN setting the nearest interface is found depending on the order the neighbors were learned. The anycast packet in a LAN setting forwards the packet to the neighbor it learned about first.

• Question 1215:

  Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.)

  A. Global addresses start with 2000::/3.

  B. Link-local addresses start with FE00:/12.

  C. Link-local addresses start with FF00::/10.

  D. There is only one loopback address and it is ::1.

  E. If a global address is assigned to an interface, then that is the only allowable address for the interface.

  Correct Answer: AD

  Below is the list of common kinds of IPv6 addresses:

  

• Question 1216:

  What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two.)

  A. It requires the use of ARP.

  B. It can support multiple IPv6 subnets on a single link.

  C. It supports up to 2 instances of OSPFv3 over a common link.

  D. It routes over links rather than over networks.

  Correct Answer: BD

• Question 1217:

  Refer to the exhibit.

  

  A frame on VLAN 1 on switch S1 is sent to switch S2 where the frame is received on VLAN 2. What causes this behavior?

  A. trunk mode mismatches

  B. allowing only VLAN 2 on the destination

  C. native VLAN mismatches

  D. VLANs that do not correspond to a unique IP subnet

  Correct Answer: C

  Untagged frames are encapsulated with the native VLAN. In this case, the native VLANs are different so although S1 will tag it as VLAN 1 it will be received by S2.

• Question 1218:

  Refer to the exhibit.

  

  A network administrator is configuring an EtherChannel between SW1 and SW2. The SW1 configuration is shown.

  What is the correct configuration for SW2?

  A. interface FastEthernet 0/1 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk

  B. interface FastEthernet 0/1 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk

  C. interface FastEthernet 0/1 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk

  D. interface FastEthernet 0/1 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk

  Correct Answer: C

  If the etherchannel was configured with mode "auto", it was using PagP, so, we need to configure the other switch with "desirable" mode.

  PagP modes: auto | Desirable LACP modes: active | pasive

• Question 1219:

  Which API is used in controller-based architectures to interact with edge devices?

  A. southbound

  B. overlay

  C. northbound

  D. underlay

  Correct Answer: A

• Question 1220:

  An organization has decided to start using cloud-provided services. Which cloud service allows the organization to install its own operating system on a virtual machine?

  A. platform-as-a-service

  B. network-as-a-service

  C. software-as-a-service

  D. infrastructure-as-a-service

  Correct Answer: D

  Below are the 3 cloud supporting services cloud providers provide to customer:

  1.

  SaaS (Software as a Service): SaaS uses the web to deliver applications that are managed by a third-party vendor and whose interface is accessed on the clients’ side. Most SaaS applications can be run directly from a web browser without any downloads or installations required, although some require plugins.

  2.

  PaaS (Platform as a Service): are used for applications, and other development, while providing cloud components to software. What developers gain with PaaS is a framework they can build upon to develop or customize applications. PaaS makes the development, testing, and deployment of applications quick, simple, and cost-effective. With this technology, enterprise operations, or a third-party provider, can manage OSes, virtualization, servers, storage, networking, and the PaaS software itself. Developers, however, manage the applications.

  3.

  IaaS (Infrastructure as a Service): self-service models for accessing, monitoring, and managing remote datacenter infrastructures, such as compute (virtualized or bare metal), storage, networking, and networking services (e.g. firewalls). Instead of having to purchase hardware outright, users can purchase IaaS based on consumption, similar to electricity or other utility billing.

  In general, IaaS provides hardware so that an organization can install their own operating system.