CCNA Flashcards
(72 cards)
What are two benefits of network automation? (Choose two)
reduced operational costs
faster changes with more reliable results
Which command enables a router to become a DHCP client?
ip address dhcp
When configuring IPv6 on an interface, which two IPv6 multicast groups are joined? (Choose two)
FF02::1
FF02::2
Which option about JSON is true?
used to describe structured data that includes arrays
Which IPv6 address type provides communication between subnets and cannot route on the Internet?
unique local
Which command prevents passwords from being stored in the configuration as plain text on a router or switch?
service password-encryption
What are two southbound APIs? (Choose two )
OpenFlow
NETCONF
Which set of action satisfy the requirement for multifactor authentication?
The user enters a user name and password, and then clicks a notification in an authentication app on a
mobile device
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
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 type of wireless encryption is used for WPA2 in preshared key mode?
TKIP with RC4
Which two 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 type of address is the public IP address of a NAT device?
inside global
How does HSRP provide first hop redundancy?
It uses a shared virtual IMC and a virtual IP address to a group of routers that serve as the default
gateway for hosts on a LAN
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
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
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
A frame that enters a switch fails the Frame Check Sequence. Which two interface counters are incremented?
(Choose two)
CRC
input errors
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 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.
Which configuration is needed to generate an RSA key for SSH on a router?
Assign a DNS domain name
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.
A Cisco IP phone receive untagged data traffic from an attached PC. Which action is taken by the phone?
It allows the traffic to pass through unchanged
What is a benefit of using a Cisco Wireless LAN Controller?
It eliminates the need to configure each access point individually
