CCNA 200-301 Q's
When configuring a WLAN with WPA2-PSK in the Cisco Wireless LAN Controller GUI, which two formats are available to select? (Choose two)
- ASCII - hexadecimal
A frame that enters a switch fails the Frame Check Sequence. Which two interface counters are incremented? (Choose two.)
- CRC - Input errors
which two of the following dynamic routing protocols are distance vector routing protocols?
- EIGRP - RIP
Which two statements about EtherChannel technology are true? (Choose two)
- EtherChannel provides increased bandwidth by bundling existing FastEthernet or Gigabit Ethernet interfaces into a single EtherChannel - EtherChannel allows redundancy in case one or more links in the EtherChannel fail
When configuring IPv6 on an interface, which two IPv6 multicast groups are joined? (Choose two.)
- FF02::1 - FF02::2
Which two statements describe characteristics of IPv6 unicast addressing? (Choose two)
- Global addresses start with 2000::/3 - There is only one loopback address and it is ::1
Which two actions are performed by the Weighted Random Early Detection mechanism? (Choose two)
- It drops lower-priority packets before it drops higher-priority packets - It can mitigate congestion by preventing the queue from filling up
What are two characteristics of a controller-based network? (Choose two)
- It uses northbound and southbound APIs to communicate between architectural layers - it moves the control plane to central point
Which two encoding methods are supported by REST APIs? (Choose two)
- JSON - XML
Which two capacities of Cisco DNA Center make it more extensible? (Choose two)
- SDKs that support interaction with third-party network equipment - REST APIs that allow for external applications to interact natively with Cisco DNA Center
Which two values or settings must be entered when configuring a new WLAN in the Cisco Wireless LAN Controller GUI? (Choose two.)
- SSID - profile name
Which two actions influence the EIGRP route selection process? (Choose two)
- The router calculates the best backup path to the destination route and assigns it as the feasible successor - The router calculates the feasible distance of all paths to the destination route
Which two conditions must be met before SSH can operate normally on a Cisco IOS switch? (Choose two.)
- The switch must be running a k9 (crypto) IOS image. - The ip domain-name command must be configured on the switch.
Which two outcomes are predictable behaviors for HSRP? (Choose two)
- The two routers share a virtual IP address that is used as the default gateway for devices on the LAN - The two routers negotiate one router as the active router and the other as the standby router
An engineer is asked to protect unused ports that are configured in the default VLAN on a switch.Which two steps will fulfill the request? (Choose two)
- administratively shut down the ports - configure the port type as access and place in VLAN 99
Which two are features of IPv6? (Choose two)
- anycast - multicast
Which two tasks must be performed to configure NTP to a trusted server in client mode on a single network device? (Choose two)
- enable NTP authentication - specify the IP address of the NTP server
In which two formats can the IPv6 address fd15:0db8:0000:0000:0700:0003:400F:572B be written? (Choose two)
- fd15:0db8:0000:0000:700:3:400F:527B - fd15:db8::700:3:400F:572B
What are two enhancements that OSPFv3 supports over OSPFV2? (Choose two)
- it can support multiple IPv6 subnets on a single link - it routes over links rather than over networks
Which three are characteristics of an IPv6 anycast address? (Choose three)
- one-to-nearest communication model - the same address for multiple devices in the group - delivery of packets to the group interface that is closest to the sending device
What are two southbound APIs? (Choose two)
- openFLOW - NETCONF
What are two benefits of network automation? (Choose two)
- reduced operational costs - faster changes with more reliable results
What are two reasons that cause late collisions to increment on an Ethernet interface? (Choose two)
- when one side of the connection is configured for half-duplex - when the cable length limits are exceeded
which two pieces if information can you determine from the output of the show ntp status command?
- whether the NTP peer is statically configured - the IP address of the peer to which the clock is synchronized
Which MAC address is recognized as a VRRP virtual address?
0000.5E00.010a
Which network allows devices to communicate without the need to access the Internet?
172.28.0.0/16
Which option is a valid IPv6 address?
2004:1:25A4:886F::1
Which IPv6 address is valid?
2031:0:130F::9C0:876A:130B
Router A learns the same route from two different neighbors, one of the neighbor routers is an OSPF neighbor and the other is an EIGRP neighbor. What is the administrative distance of the route that will be installed in the routing table?
90
Which IPv6 address is the equivalent of the IPv4 interface loopback address 127.0.0.1?
::1
Which option best describes an API?
A contract that describes how various components communicate and exchange data with each other
Which feature on the Cisco Wireless LAN Controller when enabled restricts management access from specific networks?
CPU ACL
When OSPF learns multiple paths to a network, how does it select a route?
It divides a reference bandwidth of 100 Mbps by the actual bandwidth of the existing interface to calculate the router with the lowest cost
What is a benefit of using a Cisco Wireless LAN Controller?
It eliminates the need to configure each access point individually
How does SW2 interact with other switches in this VTP domain?
It forwards only the VTP advertisements that it receives on its trunk ports
How does HSRP provide first hop redundancy?
It uses a shared virtual MAC and a virtual IP address to a group of routers that serve as the default gateway for hosts on a LAN
Which statement about Link Aggregation when implemented on a Cisco Wireless LAN Controller is true?
One functional physical port is needed to pass client traffic.
Which result occurs when PortFast is enabled on an interface that is connected to another switch?
Spanning tree may fail to detect a switching loop in the network that causes broadcast storms
How do TCP and UDP differ in the way that they establish a connection between two endpoints?
TCP uses the three-way handshake, and UDP does not guarantee message delivery.
When a floating static route is configured, which action ensures that the backup route is used when the primary route fails?
The floating static route must have a higher administrative distance than the primary route so it is used as a backup
Which statement identifies the functionality of virtual machines?
The hypervisor can virtual physical components including CPU, memory, and storage.
Which action do the switches take on the trunk link?
The trunk forms, but the mismatched native VLANs are merged into a single broadcast domain
a network engineer must back up 20 network router configurations globally within a customer environment. which protocol allows the engineer to perform this function using the cisco IOS MIB?
SNMP
In which way does a spine-and-leaf architecture allow for scalability in a network when additional access ports are required?
a leaf switch can be added with connections to every spine switch
If a notice-level messaging is sent to a syslog server, which event has occurred?
a routing instance has flapped
After the switch configuration, the ping test fails between PC A and PC B; Based on the output for switch 1, which error must be corrected?
access mode is configured on the switch ports
Based on the LACP neighbor status, in which mode is the SW1 port channel configured?
active
Which attribute does a router use to select the best path when two or more different routes to the same destination exist from two different routing protocols?
administrative distance
Which design element is a best practice when deploying an 802.11b wireless infrastructure?
allocating non-overlapping channels to access points that are in close physical proximity to one another
Which statement about the nature of NAT overload is true?
applies a one-to-many relationship to internal IP addresses
which configuration is needed to generate an RSA key for SSH on a router?
assign a DNS domain name
A user configured OSPF and advertised the Gigabit Ethernet interface in OSPF, by default, which type of OSPF network does this interface belong to?
broadcast
Which unified access point mode continues to serve wireless clients after losing connectivity to the Cisco Wireless LAN Controller?
flexconnect
An engineer configured an OSPF neighbor as a designated router. Which state verifies the designated router is in the proper mode?
full
Which type of address is the public IP address of a NAT device?
inside global
An engineer must configure a /30 subnet between two routes. Which usable IP address and subnet mask combination meets this criteria?
interface e0/0 description to HQ-A370:98968 ip address 209.165.201.2 225.255.255.252
R1 has learned route 192.168.12.0/24 via IS-IS. OSPF, RIP. and Internal EIGRP Under normal operating conditions, which routing protocol is installed in the routing table?
internal EIGRP
Which command enables a router to become a DHCP client?
ip address dhcp
Which command automatically generates an IPv6 address from a specified IPv6 prefix and MAC address of an interface?
ipv6 address autoconfig
Which command is used to configure an IPv6 static default route?
ipv6 route ::/0 interface next-hop5
Which command enables IPv6 forwarding on a Cisco router?
ipv6 unicast routing
What makes Cisco DNA Center different from traditional network management applications and their management of networks?
it abstracts policy from the actual device configuration
A Cisco IP phone receives untagged data traffic from an attached PC. Which action is taken by the phone?
it allows traffic to pass through unchanged
What will happen if you configure the logging trap debug command on a router?
it causes the router to send all messages to the syslog server
Bad mask /28 for address 192.168.16.143; Which statement explains the configuration error message that is received?
it is a broadcast IP address
What is the primary effect of the spanning-tree portfast command?
it minimizes spanning-tree convergence time
Which mode allows access points to be managed by Cisco Wireless LAN Controllers?
lightweight
Which command is used to specify the delay time in seconds for LLDP to initialize on any interface?
lldp reinit
Which 802.11 frame type is association response?
management
a router running EIGRP has learned the same route from two different paths. which parameter does the router use to select the best path?
metric
Which mode must be used to configure EtherChannel between two switches without using a negotiation protocol?
on
Which statement correctly compares traditional networks and controller-based networks?
only controller-based networks decouple the control plane and the data plane
Which QoS Profile is selected in the GUI when configuring a voice over WLAN deployment?
platinum
A user configured OSPF in a single area between two routers A serial interface connecting R1 and R2 is running encapsulation PPP, by default, which OSPF network type is seen on this interface when the user types show ip ospf interface on R1 or R2?
point-to-point
How does STP prevent forwarding loops at OSI Layer 2?
port blocking
Which command prevents passwords from being stored in the configuration as plain text on a router or switch?
service password-encryption
Which command provides this output?
show cdp neighbor
Which Cisco IOS command will indicate that interface Gigabit Ethernet 0/0 is configured via DHCP?
show ip interface gigabitethernet 0/0
Which command verifies whether any IPv6 ACLs are configured on a router?
show ipv6 access-list
which API is used in controller-based architectures to interact with edge devices?
southbound
which command must you enter to guarantee that an HSRP router with higher priority becomes the HSRP primary router after it is reloaded?
standby 10 preempt
Which password must an engineer use to enter the enable mode?
testing1234 (enable secret testing1234)
What is the default behavior of a Layer 2 switch when a frame with an unknown destination MAC address is received?
the layer 2 switch floods packets to all ports except the receiving port in the given VLA
Two switches are connected and using Cisco Dynamic Trunking Protocol. SW1 is set to Dynamic Auto and SW2 is set to Dynamic Desirable. What is the result of this configuration?
the link becomes a trunk port
Which command can you enter to allow Telnet to be supported in addition to SSH?
transport input telnet ssh
AAA stands for authentication, authorization, and accounting
true
Which IPv6 address type communication between subnets and cannot route on the Internet?
unique local
Which option about JSON is true?
used to describe structured data that includes arrays
An email user has been lured into clicking a link in an email sent by their company's security organization. The webpage that opens reports that it was safe but the link could have contained malicious code. Which type of security program is in place?
user awareness
Which of the following is the JSON encoding of a dictionary or hash?
{"key":"value"}
an engineer must configure a WLAN using the strongest encryption type for WPA2-PSK. which cipher fulfills the configuration requirement?
AES
which type of wireless encryption is used for WPA2 in pre-shared key mode?
AES-256
What is the primary different between AAA authentication and authorization?
Authentication identifies and verifies a user who is attempting to access a system, and authorization controls the tasks the user can perform
What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72?
B514 : 82C3 :: 0029 : EC7A : 0 : EC72
Which IPv6 address block sends packets to a group address rather than a single address?
FF00::/8
which feature or protocol determines whether the QOS on the network is sufficient to support IP services?
IP SLA
when a site-to-site VPN is used, which protocol is responsible for the transport of user data?
IPSec
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?
IaaS
Which action is taken by a switch port enabled for PoE power classification override?
If a monitored port exceeds the maximum administrative value for power, the port is shutdown and err disabled
Which action is taken by switch port enabled for PoE power classification override?
If a monitored port exceeds the maximum administrative value for power, the port is shutdown and err-disabled
