Exam Prep Flashcards
What is the sys-id-ext field in a BPDU used for?
To allow for the PVST+ to operate, there’s a field inserted into the BPDU to accommodate the extended system ID so that PVST+ can have a root bridge configured on a per-STP instance. The extended system ID (VLAN ID) is a 12-bit field.
What solution will you use to aggregate bandwidth with four RSTP PVST+ links between switches?
EtherChannel
What configuration parameters must be configured the same between switches for LACP to form a channel? (Choose three)
- Port speeds
- Duplex
- Allowed VLAN information
What will a router with a configuration register setting of 0x2101 do when it reloads?
The router boots the mini-IOS in ROM.
Which command provides the product ID and serial number of a router?
show license udi
Which command allows you to view the technology options and licenses supported on your router?
show license feature
How long can you look back into the DNA snapshot in DNA Center?
1 Week
What command will you use to send status messages of 3 and lower to a syslog server?
logging trap errors
What is the purpose of the Code Preview feature? (Choose three)
- View what a code will do when ran against DNA Center
- Generates a sample code snippet to call the Restful API resource in the scripting language of your choice.
- Enroll in beta updates for DNA Center
What could be the problem if you cannot connect to a remote IPv6 server?
The IPv6 default gateway has not been configured or received from the router.
What command is used to view the IPv6-to-MAC-address resolution table on a Cisco router?
show ipv6 neighbors
If an IPv6 ARP entry has a status of REACH, what can you conclude about the mapping?
The interface has communicated with the neighbor address and the mapping is current.
Which configuration management solutions require agents? (Choose two)
- Puppet
- Chef
_____ is a Ruby-based configuration management tool that uses custom manifest files to configure devices.
Puppet
_____ is a Ruby-based configuration tool that uses cookbooks to apply configuration.
Chef
What should you check if two OSPF directly configured routers are not forming an adjacency? (Choose three)
- Hello and dead timers
- Area
- IP address/subnet mask
When do two adjacent routers enter the 2WAY state?
After both routers have received Hello information
What is the Command Runner used for?
Pushing Show commands and viewing the results
What type of switching is done in a network fabric?
Layer 3
Which statement about GRE is not true?
GRE has security.
Which QoS mechanism will drop traffic if a session uses more than the allotted bandwidth?
Policing
Which addresses would show up with the show ipv6 int brief command on the Corp router?
FE80::3c3d:2d:bdff:fe3b:0d80
[LINK LOACAL]
What type of NDP message provides the MAC address that was requested?
NA
Each field in an IPv6 address is how many bits long?
16
To enable OSPFv3, which command would you use?
Router(config-if)#ipv6 ospf 10 area 0.0.0.0
What does the command routerA(config)#line cons 0 allow you to perform next?
Set your console password.
Broadcast/LowestHost IP address 10.16.3.65/23?
- The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
- The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
On which interface do you configure an IP address for a switch?
int vlan 1
On which interface do you configure an IP address for a switch?
int vlan 1
The IP address is configured under a logical interface, called a management domain or VLAN 1, by default.
What is the valid host range for the subnet on which the IP address 192.168.168.188 255.255.255.192 resides?
192.168.168.129–190
The subnet is 128, the broadcast address is 191, and the valid host range is the numbers in between, or 129–190.
What is considered to be the inside host’s address after translation?
Inside global
An inside global address is considered to be the IP address of the host on the private network after translation.
Which command will show you if your inside globals are allowed to use the NAT pool?
show access-list
The command ip nat inside source must be used to say which inside locals are allowed to use the pool.
How many collision domains are created when you segment a network with a 12-port switch?
12
Layer 2 switching creates individual collision domains per port.
Which command allows you to set your Telnet password on a Cisco router?
line vty 0 4
This command places you in a prompt that will allow you to set or change your Telnet password.
Which router command allows you to view the entire contents of all access lists?
show access-lists
To see the contents of all access lists, use the show access-lists command.
What does a VLAN do?
Breaks up broadcast domains in a layer 2 switch internetwork
VLANs break up broadcast domains at layer 2.
If you wanted to delete the configuration stored in NVRAM, what command would you use?
erase startup-config
This command deletes the configuration stored in NVRAM.
Which protocol is used to send a destination network unknown message back to originating hosts?
ICMP
ICMP is the protocol at the Network layer that is used to send messages back to an originating router.
Which class of IP address provides 15 bits for subnetting?
B
Class B provides 16 bits, but only 14 are available for subnetting.
What DNS record do you need to create for APs to automatically discover the WLC?
CISCO-CAPWAP-CONTROLLER
For the DNS method, you need to create an A record for CISCO-CAPWAP-CONTROLLER that points to the WLC management IP.
Which statement is true regarding VLANs?
You need to have a trunk link configured between switches in order to send information about more than one VLAN down the link
Switches send information about only one VLAN down a link unless it is configured as a trunk link.
Which two commands will place network 10.2.3.0/24 into area 0? (Choose two.)
router ospf 10, network 10.2.3.0 0.0.0.255 area 0
After starting the OSPF process, you must configure interfaces using the network command.
What command do you use to lookup a module in Ansible?
ansible-doc
Ansible uses the ansible-doc command to look up a module and how to use it.
If routers in a single area are configured with the same priority value, what value does a router use for the OSPF router ID in the absence of a loopback interface?
The highest IP address of any physical interface
The highest IP address on any active interface will be the router ID (RID) of the router.
What protocols are used to configure trunking on a switch? (Choose two.)
802.1q, ISL
VLAN Trunking Protocol (VTP) is not right because it has nothing to do with trunking.
What’s the default QoS queue for a WLAN?
Silver
WLANs default to silver queue, which effectively means no QoS is being utilized.
Where is a hub specified in the OSI model?
Physical layer
Hubs regenerate electrical signals, which are specified at the Physical layer.
What are the two main types of access control lists (ACLs)? (Choose two.)
Standard, Extended
Standard and extended access control lists (ACLs) are used to configure security on a router.
Which port does TACACS+ use for accounting?
TCP 49
TACACS+ uses port TCP 49 for all operations.
What command is used to create a backup configuration?
copy running-config startup-config
This command backs up the configuration on a router.
1000Base-T is which IEEE standard?
802.3ab
IEEE 802.3ab is the standard for 1 Gbps on twisted-pair.
Which protocol does DHCP use at the Transport layer?
UDP
User Datagram Protocol is a connection network service at the Transport layer, and DHCP uses this connectionless service.
What best describes a Resource in Restful API?
The specific path to the resource you’re trying to access through the API
The resource section of the URI points to the specific.
Which command is used to determine if an access list is enabled on a particular interface?
show ip interface
This command will show you if any interfaces have an outbound or inbound access list set.
Which statement is true with regard to ISL and 802.1q?
802.1q encapsulates the frame with control information; ISL inserts an ISL field along with tag control information
Unlike ISL, which encapsulates the frame with control information, 802.1q inserts an 802.1q field along with tag control information.
What is the order of the protocol data unit (PDU) encapsulation?
Data, segments, packets, frames, bits
The PDU encapsulation method defines how data is encoded as it goes through each layer of the TCP/IP model.
Based on the configuration shown, what statement is true?
This is a multilayer switch
With a multilayer switch, enable IP routing and create one logical interface for each VLAN to do inter-VLAN routing.
What enhancement replaced the default open authentication in WPA3?
OWE
The 802.11 “open” authentication support has been replaced with Opportunistic Wireless Encryption (OWE) enhancement.
Which AP modes serve wireless traffic? (Choose 2)
Local, FlexConnect
The two AP-Modes listed that can serve wireless traffic are local and flexconnect.
What best defines a token in Restful API?
How you authenticate to the Restful API service
The token is used to authenticate you to the restful API service.
What can the Code Preview feature be used for? (Choose three.)
Generates a sample code snippet to call the Restful API resource in the scripting language of your choice
The Code Preview feature can generate a simple code snippet for several programming languages.
