Oct 20, 2021 Step by Step Guide to Prepare for 350-401 Exam BrainDumps
CCNP Enterprise 350-401 Real Exam Questions and Answers FREE Updated on 2021
NEW QUESTION 80
Drag and drop the DHCP messages that are exchanged between a client and an AP into the order they are exchanged on the right.
Answer:
Explanation:
Explanation
There are four messages sent between the DHCP Client and DHCP Server: DHCPDISCOVER, DHCPO FFER, DHCPREQUEST and DHCPACKNOWLEDGEMENT.
This process is often abbreviated as DORA (for Discover, Offer, Request, Acknowledgement).
NEW QUESTION 81
An engineer measures the Wi-Fi coverage at a customer site. The RSSI values are recorded as follows:
Which two statements does the engineer use to explain these values to the customer? (Choose two)
- A. The signal strength at location B is 10 dB better than location C
- B. The RF signal strength at location B is 50% weaker than location A
- C. The signal strength at location C is too weak to support web surfing
- D. The RF signal strength at location C is 10 times stronger than location B
- E. Location D has the strongest RF signal strength
Answer: C,D
Explanation:
Explanation
Understanding Signal Strength
The most accurate way to express it is with milliwatts (mW), but you end up with tons of decimal places due to WiFi's super-low transmit power, making it difficult to read. For example, -40 dBm is 0.0001 mW, and the zeros just get more intense the more the signal strength drops.
Ultimately, the easiest and most consistent way to express signal strength is with dBm, which stands for decibels relative to a milliwatt.
You can convert between mW and dBm using the following formulas:
P(dBm) = 10 * log10(P(mW))
For example, a power of 2.5 mW in dBm is:
dBm = 10log2.5 = 3.979
dBm is that we're working in negatives. -30 is a higher (stronger) signal than -80.
Signal Strength
Rating
Required for
-30 dBm
Amazing
Max achievable signal strength. The client can only be a few feet from the AP to achieve this. Not typical or desirable in the real world.
N/A
-67 dBm
Very Good
Minimum signal strength for applications that require very reliable, timely delivery of data packets.
VoIP/VoWiFi, streaming video
-70 dBm
Okay
Minimum signal strength for reliable packet delivery.
Email, web
-80 dBm
Not Good
Minimum signal strength for basic connectivity. Packet delivery may be unreliable.
N/A
-90 dBm
Unusable
Approaching or drowning in the noise floor. Any functionality is highly unlikely.
N/A
3 dB of gain = +3 dB = doubles signal strength (Let's say, the base is P. So 10*log10(P/P)= 0 dB and
10*log10(2P/P) = 10*log10(2) = 3dB -> double signal)3 dB of loss = -3 dB = halves signal strength strength (10*log(1/2) = -3.0103)10 dB of loss = -10 dB = 10 times less signal strength (0.1 mW = -10 dBm, 0.01 mW =
-20 dBm, etc.)10 dB of gain = +10 dB = 10 times more signal strength (0.00001 mW = -50 dBm, 0.0001 mW
= -40 dBm, etc.)
NEW QUESTION 82
Drag and drop the DHCP messages that are exchanged between a client and an AP into the order they are exchanged on the right.
Answer:
Explanation:
Explanation
There are four messages sent between the DHCP Client and DHCP Server: DHCPDISCOVER, DHCPO FFER, DHCPREQUEST and DHCPACKNOWLEDGEMENT.
This process is often abbreviated as DORA (for Discover, Offer, Request, Acknowledgement).
NEW QUESTION 83
Which line must be added in the Python function to return the JSON object {"cat_9k": "FXS193202SE")?
A)
B)
C)
D)
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: B
NEW QUESTION 84 
Refer to the exhibit. An engineer must deny HTTP traffic from host A to host V while allowing all other communication between the hosts, drag and drop the commands into the configuration to achieve these results.
Some commands may be used more than once. Not all commands are used.
Answer:
Explanation:
Explanation
Deny
Permit
Action drop
Action forward
NEW QUESTION 85
Wireless users report frequent disconnections from the wireless network. While troubleshooting a network engineer finds that after the user a disconnect, the connection re-establishes automatically without any input required. The engineer also notices these message logs .
Which action reduces the user impact?
- A. increase the dynamic channel assignment interval
- B. increase the AP heartbeat timeout
- C. increase BandSelect
- D. enable coverage hole detection
Answer: A
NEW QUESTION 86
In an SD-Access solution what is the role of a fabric edge node?
- A. to connect wired endpoint to the SD-Access fabric
- B. to connect the fusion router to the SD-Access fabric
- C. to advertise fabric IP address space to external network
- D. to connect external Layer 3- network to the SD-Access fabric
Answer: A
Explanation:
Explanation
+ Fabric edge node: This fabric device (for example, access or distribution layer device) connects wired endpoints to the SDA fabric.
NEW QUESTION 87
Refer to the exhibit. Which set of commands on router r R1 Allow deterministic translation of private hosts PC1, PC2, and PC3 to addresses in the public space?
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: A
NEW QUESTION 88
Refer to the exhibit.
Based on the configuration in this WLAN security setting, Which method can a client use to authenticate to the network?
- A. certificate
- B. username and password
- C. RADIUS token
- D. text string
Answer: D
NEW QUESTION 89
Refer to the exhibit.
A port channel is configured between SW2 and SW3. SW2 is not running a Cisco operating system. When all physical connections are made, the port channel does not establish. Based on the configuration excerpt of SW3. what is the cause of the problem?
- A. The port channel on SW2 is using an incompatible protocol.
- B. The port-channel mode should be set to auto.
- C. The port-channel interface load balance should be set to src-mac
- D. The port-channel trunk is not allowing the native VLAN
Answer: A
NEW QUESTION 90
Where is radio resource management performed in a cisco SD-access wireless solution?
- A. control plane node
- B. DNA Center
- C. Cisco CMX
- D. wireless controller
Answer: D
Explanation:
Fabric wireless controllers manage and control the fabric-mode APs using the same general model as the traditional local-mode controllers which offers the same operational advantages such as mobility control and radio resource management. A significant difference is that client traffic from wireless endpoints is not tunnelled from the APs to the wireless controller. Instead, communication from wireless clients is encapsulated in VXLAN by the fabric APs which build a tunnel to their first-hop fabric edge node. Wireless traffic it tunneled to the edge nodes as the edge nodes provide fabric services such as the Layer 3 Anycast Gateway, policy, and traffic enforcement. https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html
NEW QUESTION 91
Running the script causes the output in the exhibit. Which change to the first line of the script resolves the error?
- A. from ncclient import
- B. from ncclient import*
- C. import ncclient manager
- D. import manager
Answer: B
NEW QUESTION 92
Refer to exhibit.
VLANs 50 and 60 exist on the trunk links between all switches All access ports on SW3 are configured for VLAN 50 and SW1 is the VTP server Which command ensures that SW3 receives frames only from VLAN 50?
- A. SW3(config)#vtp mode transparent
- B. SW1(config)#vtp pruning
- C. SW2(config)#vtp pruning
- D. SW1(config)#vtp mode transparent
Answer: B
Explanation:
SW3 does not have VLAN 60 so it should not receive traffic for this VLAN (sent from SW2).
Therefore we should configure VTP Pruning on SW3 so that SW2 does not forward VLAN 60 traffic to SW3.
Also notice that we need to configure pruning on SW1 (the VTP Server), not SW2.
NEW QUESTION 93
Which method displays text directly into the active console with a synchronous EEM applet policy?
- A. event manager applet boom
event syslog pattern 'UP'
action 1.0 gets 'logging directly to console' - B. event manager applet boom
event syslog pattern 'UP'
action 1.0 syslog priority direct msg 'log directly to console' - C. event manager applet boom
event syslog pattern 'UP'
action 1.0 puts 'logging directly to console' - D. event manager applet boom
event syslog pattern 'UP'
action 1.0 string 'logging directly to console'
Answer: B
Explanation:
To enable the action of printing data directly to the local tty when an Embedded Event Manager
(EEM) applet is triggered, use the action puts command in applet configuration mode.
The following example shows how to print data directly to the local tty:
The action puts command applies to synchronous events. The output of this command for a
synchronous applet is directly displayed to the tty, bypassing the syslog.
Reference:
a1.html
NEW QUESTION 94
Which method creates an EEM applet policy that is registered with EEM and runs on demand or manually?
- A. event manager applet ondemand
event register
action 1.0 syslog priority critical msg 'This is a message from ondemand' - B. event manager applet ondemand
event none
action 1.0 syslog priority critical msg 'This is a message from ondemand' - C. event manager applet ondemand
action 1.0 syslog priority critical msg 'This is a message from ondemand' - D. event manager applet ondemand
event manual
action 1.0 syslog priority critical msg 'This is a message from ondemand'
Answer: B
Explanation:
Explanation
An EEM policy is an entity that defines an event and the actions to be taken when that event occurs. There are two types of EEM policies: an applet or a script. An applet is a simple form of policy that is defined within the CLI configuration. answer 'event manager applet ondemand event register action 1.0 syslog priority critical msg 'This is a message from ondemand'
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There are two ways to manually run an EEM policy. EEM usually schedules and runs policies on the basis of an event specification that is contained within the policy itself. The event none command allows EEM to identify an EEM policy that can be manually triggered. To run the policy, use either the action policy command in applet configuration mode or the event manager run command in privileged EXEC mode.
NEW QUESTION 95
What are two reasons why broadcast radiation is caused in the virtual machine environment? (Choose two.)
- A. Virtual machines communicate primarily through broadcast mode.
- B. Communication between vSwitch and network switch is multicast based.
- C. Communication between vSwitch and network switch is broadcast based.
- D. The Layer 2 domain can be large in virtual machine environments.
- E. vSwitch must interrupt the server CPU to process the broadcast packet.
Answer: A,D
Explanation:
Broadcast radiation is the accumulation of broadcast and multicast traffic on a computer network. Extreme amounts of broadcast traffic constitute a broadcast storm.
The amount of broadcast traffic you should see within a broadcast domain is directly proportional to the size of the broadcast domain. Therefore if the layer 2 domain in virtual machine environment is too large, broadcast radiation may occur -> VLANs should be used to reduce broadcast radiation.
Also if virtual machines communicate via broadcast too much, broadcast
radiation may occur.
Another reason for broadcast radiation is using a trunk (to extend VLANs) from the network switch to the physical server.
Note about the structure of virtualization in a hypervisor:
Hypervisors provide virtual switch (vSwitch) that Virtual Machines (VMs) use to communicate with other VMs on the same host. The vSwitch may also be connected to the host's physical NIC to allow VMs to get layer 2 access to the outside world.
Each VM is provided with a virtual NIC (vNIC) that is connected to the
virtual switch. Multiple vNICs can connect to a single vSwitch, allowing VMs on a physical host to communicate with one another at layer 2 without having to go out to a physical switch.
Although vSwitch does not run Spanning-tree protocol but vSwitch
implements other loop prevention mechanisms. For example, a
frame that enters from one VMNIC is not going to go out of the
physical host from a different VMNIC card.
NEW QUESTION 96
Drag and drop the LISP components from the left onto the function they perform on the right. Not all options are used.
Answer:
Explanation:
NEW QUESTION 97
Drag and drop the threat defense solutions from the left onto their descriptions on the right.
Answer:
Explanation:
Explanation
NEW QUESTION 98 
Refer to the exhibit. An engineer is configuring an EtherChannel between Switch1 and Switch2 and notices the console message on switch2. Based on the output, which action resolves this issue?
- A. Configure the same port channel interface number on both switches
- B. Configure the same EtherChannel protocol on both switches
- C. Configure less member ports on Switch2.
- D. Configure more member ports on Switch1.
Answer: B
Explanation:
Explanation
In this case, we are using your EtherChannel without a negotiation protocol on Switch2. As a result, if the opposite switch is not also configured for EtherChannel operation on the respective ports, there is a danger of a switching loop. The EtherChannel Misconfiguration Guard tries to prevent that loop from occuring by disabling all the ports bundled in the EtherChannel.
NEW QUESTION 99
Drag and drop the characteristics from the left onto the routing protocols they describe on the right.
Answer:
Explanation:
NEW QUESTION 100
Refer to the exhibit.
Which configuration must be applied to the HQ router to set up a GRE tunnel between the HQ and BR routers?
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: B
Explanation:
https://community.cisco.com/t5/networking-documents/how-to-configure-a-gre-tunnel/ta-p/3131970#toc-hId--1446104265
NEW QUESTION 101
Drag and drop the characteristics from the left onto the correct infrastructure deployment types on the right.
Answer:
Explanation:
Explanation
On premise: customizable,specific requirements,resources
Cloud: scale, built-in automated backup, strong stable internet
NEW QUESTION 102
Refer to the exhibit.
Which single security feature is recommended to provide Network Access Control m the enterprise?
- A. 802.1X
- B. WebAuth
- C. MAB
- D. port security sticky MAC
Answer: A
NEW QUESTION 103
Which data is properly formatted with JSON?
A)
B)
C)
D)
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: A
NEW QUESTION 104
Refer to the exhibit.
Which two commands ensure that DSW1 becomes root bridge for VLAN 10 and 20?
- A. spanning-tree mst vlan 10,20 priority root
- B. spanning-tree mst 1 priority 1
- C. spanning-tree mstp vlan 10,20 root primary
- D. spanning-tree mst 1 priority 4096
- E. spanning-tree mst 1 root primary
Answer: D,E
Explanation:
NEW QUESTION 105
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