350-401的几个问题

qwer12tyu34

QUESTION 286
Why would a log file contain a * next to the date?
A. The network device is not configured to use NTP time stamps for logging
B. The network device was unable to reach the NTP server when the log messages were recorded.
C. The network device is not configured to use NTP
D. The network device was receiving NTP time when the log messages were recorded
QUESTION 272

Cisco DNA Center has obtained the username of the client and the multiple devices that the client is using on the network. How is Cisco DNA Center getting these
context details?
A. Those details are provided to Cisco DNA Center by the Identity Services Engine
B. The administrator had to assign the username to the IP address manually in the user database tool on Cisco DNA Center
C. User entered those details in the Assurance app available on iOS and Android devices
D. Cisco DNA Center pulled those details directly from the edge node where the user connected

QUESTION 290

What is the JSON syntax that is formed from the data?
A. Make”:’Gocar, “Model’: “Zoom”, “Features”: [“Power Windows”, “Manual Dnve”, “Auto AC”]}
B. (“Make”:[ “Gocar”, “Model”: “Zoom”], Features”: [“Power Windows”, “Manual Drive”, “Auto AC”]}
C. {“Make”: Gocar, “Model”: Zoom, “Features”: Power Windows, Manual Drive, Auto AC}
D. {“Make”: “Gocar”, “Model”: “Zoom”, “Features”: [“Power Windows”, “Manual Drive”, “Auto AC”]}

QUESTION 295

which configuration must be applied to R1 to enbale R1 to reach the server at 172.16.0.1 ?
A. interface Ethernet 0/0
vrf forwarding hotel
ip address 172.16.0.7 255.255.0.0
router ospf 44 vrf Hotel
network 172.16.0.0 0.0.255.255 area 0
B. interface Ethernet 0/0
vrf forwarding bank
ip address 172.16.0.7 255.255.0.0
router ospf 44 vrf bank
network 172.16.0.0 0.0.255.255 area 0
C. interface Ethernet 0/0
ip address 172.16.0.7 255.255.0.0
router ospf 44 vrf Hotel
network 172.16.0.0 0.0.255.255 area 0
D. interface Ethernet 0/0
ip address 172.16.0.7 255.255.0.0
router ospf 44 vrf bank
network 172.16.0.0 0.0.255.255 area 0
QUESTION 401
What is an advantage of using BFD?
A. It local link failure at layer 1 and updates routing table
B. It detects local link failure at layer 3 and updates routing protocols
C. It has sub-second failure detection for layer 1 and layer 3 problems
D. It has sub-second failure detection for layer 1 and layer 2 problems.

求大佬解答