350-401 practice questions 181–190

1. Question 181 · 1003 in bank

   

   Refer to the exhibit. A network engineer configures NAT on R1 and enters the show command to verify the configuration. What does the output confirm?

   • AThe first packet triggered NAT to add an entry to the NAT table.
   • BR1 is configured with NAT overload parameters.
   • CA Telnet session from 160.1.1.1 to 10.1.1.10 has been initiated.
   • DR1 is configured with PAT overload parameters.

   Show answer

   Answer: A

   Explanation

   B - Wrong as the configuration is not that of NAT overload. D - Wrong as the configuration is not that of port access translation (PAT). Note that PAT is the same as NAT Overload. C - The output provided doesn't show evidence of a TCP connection. A- Right as the last line of the output shows that one of the outside global addresses is in use.

   Source: Adapted from community discussion — Pilgrim5

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2. Question 182 · 1003 in bank

   

   Refer to the exhibit. What is the cause of the log messages?

   • AOSPF area change
   • BMTU mismatch
   • CIP address mismatch
   • Dhello packet mismatch

   Show answer

   Answer: A

   Explanation

   Due to the conflicting opinions here I tested it in GNS3. I tried altering the MTU, hello timers and the area. The only one that produced this problem is the area change.

   Source: Adapted from community discussion — Jared28

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3. Question 183 · 1003 in bank

   Select 2

   A network engineer configures BGP between R1 and R2. Both routers use BGP peer group CORP and are set up to use MD5 authentication. This message is logged to the console of router R1: `May 5 39:85:55.469: %TCP-6-BADAUTH` Invalid MD5 digest from 10.10.10.1 (29832) to 10.120.10.1 (179) tebleid -0 Which two configurations allow a peering session to form between R1 and R2? (Choose two.)

   • AR1(config-router)#neighbor 10.10.10.1 peer-group CORP R1(config-router)#neighbor CORP password Cisco
   • BR2(config-router)#neighbor 10.120.10.1 peer-group CORP R2(config-router)#neighbor CORP password Cisco
   • CR2(config-router)#neighbor 10.10.10.1 peer-group CORP R2(config-router)#neighbor PEER password Cisco
   • DR1(config-router)#neighbor 10.120.10.1 peer-group CORP R1(config-router)#neighbor CORP password Cisco
   • ER2(config-router)#neighbor 10.10.10.1 peer-group CORP R2(config-router)#neighbor CORP password Cisco

   Show answer

   Answer: AB

   Explanation

   Answer is correct, AB. The question states the console output is from R1, which means that R1 is 10.120.10.1, and R2 is 10.10.10.1. If you missed that you may have assumed the reverse and picked DE.

   Source: Adapted from community discussion — hex2

   References

   • Cisco documentation

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4. Question 184 · 1003 in bank

   

   Refer to the exhibit. An engineer implemented several configuration changes and receives the logging message on Switch1. Which action should the engineer take to resolve this issue?

   • AChange Switch2 to switch port mode dynamic auto.
   • BChange the VTP domain to match on both switches.
   • CChange Switch1 to switch port mode dynamic auto.
   • DChange Switch1 to switch port mode dynamic desirable.

   Show answer

   Answer: B

   Explanation

   Data Traffic Blocked between VTP Domains Sometimes it is required to connect to switches that belong to two different VTP domains. For example, there are two switches called Switch1 and Switch2. Switch1 belongs to VTP domain cisco1 and Switch2 belongs to VTP domain cisco2. When you configure trunk between these two switches with the Dynamic Trunk Negotiation (DTP), the trunk negotiation fails and the trunk between the switches does not form, because the DTP sends the VTP domain name in a DTP packet. Because of this, the data traffic does not pass between the switches. https://www.cisco.com/c/en/us/support/docs/lan-switching/vtp/98155-tshoot-vlan.html#topic5

   Source: Adapted from community discussion — error_909

   References

   • Cisco documentation

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5. Question 185 · 1003 in bank

   DRAG DROP - Drag and drop the characteristics of PIM Dense Mode from the left to the right. Not all options are used. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   In dense mode, a router assumes that all other routers want to forward multicast packets for a group. If a router receives a multicast packet and has no directly connected members or PIM neighbors present, a prune message is sent back to the source. Subsequent multicast packets are not flooded to this router on this pruned branch. PIM builds source-based multicast distribution trees. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-tech-oview.html

   Source: Adapted from community discussion — kldoyle97

   References

   • Cisco documentation

   

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6. Question 186 · 1003 in bank

   DRAG DROP - Drag and drop the characteristics from the left onto the correct infrastructure deployment type on the right. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   On-Premisses significant initial investiment company has control over the physical Cloud pay-as-you-go model physical location of data can be very scalable and fast delivery

   Source: Adapted from community discussion — Pudu_vlad

   

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7. Question 187 · 1003 in bank

   DRAG DROP - Drag and drop the wireless elements on the left to their definitions on the right. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   Wouldn't be this (excerpts from the official guide, #2 and #4 I'm not as sure on): 1. Gain - In other words, the gain of an antenna is a measure of how effectively it can focus RF energy in a certain direction. 2. Radiation Patterns: Between 2 and 4 I was unsure for this one but the fact they spend a lot of time talking about graphing it, this felt best in #2. 3. Beamwidth: The beamwidth is determined by finding the strongest point on the plot, which is usually somewhere on the outer circle. Next, the plot is followed in either direction until the value decreases by 3 dB, indicating the point where the signal is one-half the strongest power. 4. Polarization: The electrical field wave’s orientation, with respect to the horizon, is called the antenna polarization.

   Source: Adapted from community discussion — Jared28

   

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8. Question 188 · 1003 in bank

   How are the different versions of IGMP compatible?

   • AIGMPv2 is compatible only with IGMPv2.
   • BIGMPv3 is compatible only with IGMPv3.
   • CIGMPv2 is compatible only with IGMPv1.
   • DIGMPv3 is compatible only with IGMPv1

   Show answer

   Answer: C

   Explanation

   Compatible with other Versions of IGMP? IGMPv1 : No IGMPv2 : Yes, only with IGMP v1 IGMPv3 : Yes, with both IGMP v1 and v2

   Source: Adapted from community discussion — HeinThu

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9. Question 189 · 1003 in bank

   Which measurement is used from a post wireless survey to depict the cell edge of the access points?

   • ASNR
   • BNoise
   • CRSSI
   • DCCI

   Show answer

   Answer: C

   Explanation

   https://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless-controllers/116057-site-survey-guidelines-wlan-00.html says BOTH answers: "Heat map that displays RF coverage for all ‘in-scope’ areas with coverage set at the target RSSI for cell edge with a signal legend." "The edge of the coverage for an AP is based on the signal strength and SNR measured as the client device moves away from the AP. " It also says stuff like "For voice deployments, it is recommended that the cell edge should be at -67 dBm with 20 percent overlap." and -67 dBm is more of an RSSI value than a SNR value so I'm going with C. RSSI but really..... its a roll of the dice isn't it?

   Source: Adapted from community discussion — hex2

   References

   • Cisco documentation
   • Cisco documentation
   • Cisco documentation
   • cisco.com documentation
   • cisco.com documentation

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10. Question 190 · 1003 in bank

    If a client's radio device receives a signal strength of -67 dBm and the noise floor is -85 dBm, what is the SNR value?

    • A15 dB
    • B16 dB
    • C18 dB
    • D20 dB

    Show answer

    Answer: C

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350-401 practice, question 181. 1003 questions available.