Question 1
A network engineer must configure the router R1 GigabitEthemetl/1 interface to connect
to the router R2 GigabitEthemetl/1 interface. For the configuration to be applied the
engineer must compress the address 2001:0db8:0000:0000:0500:000a:400F:583B. Which
command must be issued on the interface?
• A. ipv6 address 2001 db8:0::500:a:4F:583B
. B. ipv6 address 2001::db8:0000::500:a:400F:583B
• C. ipv6 address 2001:db8::500:a:400F:583B correct
• D. ipv6 address 2001:0db8::5:a:4F:583B
Question 2
Which switch technology establishes a network connection immediately when it is plugged
in?
• A. PortFast correct
• B. BackboneFast
• C. UplinkFast
• D. BPDU guard
Explanation
Portfast is often configured on switch ports that connect to hosts. Interfaces with Portfast enabled will
go to forwarding state immediately without passing the listening and learning state. Therefore it can
save about 30 to 45 seconds to transition through these states.
UplinkFast is a Cisco specific feature that improves the convergence time of the Spanning-Tree
Protocol (STP) in the event of the failure of an uplink.
Question 3
A user configured OSPF in a single area between two routers. A serial interface connecting
R1 and R2 is running encapsulation PPP. By default which OSPF network type is seen on
this interface when the user types show ip ospf interface on R1 or R2?
• A. point-to-multipoint
• B. point-to-point correct
• C. broadcast
• D. non-broadcast
Explanation
The default OSPF network type for HDLC and PPP on Serial link is point-to-point (while the default
OSPF network type for Ethernet link is Broadcast).
Question 4
What is the default behavior of a Layer 2 switch when a frame with an unknown destination
MAC address is received?

• A. The Layer 2 switch forwards the packet and adds the destination MAC address to Its MAC
address table
• B. The Layer 2 switch floods packets to all ports except the receiving port in the
given VLAN correct
• C. The Layer 2 switch sends a copy of a packet to CPU for destination MAC address learning
• D. The Layer 2 switch drops the received frame
Explanation
If the destination MAC address is not in the CAM table (unknown destination MAC address), the switch
sends the frame out all other ports that are in the same VLAN as the received frame. This is called
flooding. It does not flood the frame out the same port on which the frame was received.
Question 5
Refer to the exhibit.
Gateway of last resort is 172.16.2.2 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.10.10.0/24 is directly connected, GigabitEthemet0/0/0
L 10.10.10.3/32 is directly connected, GigabitEthemet0/0/0
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
S 172.16.1.33/32 is directly connected, GigabitEthernet0/0/l
C 172.16.2.0/23 is directly connected, GigabitEthemet0/0/l
L 172.16.2.1/32 is directly connected, GigabitEthcmctO/0/1
S* 0.0.0.0/0 [1/0] via 172.16.2.2
Apacket sourced from 10.10.10.1 is destined for 172.16.3.254. What is the subnet mask of
the destination route?
• A. 0.0.0.0
• B. 255.255.255.255
• C. 255.255.254.0 correct
• D. 255.255.255.0
Explanation
The packet destined for 172.16.3.254 will be routed via the entry "C 172.16.2.0/23 ..." as this subnet
ranges from 172.16.2.0 to 172.16.3.255.
Question 6
When a floating static route is configured, which action ensures that the backup route is
used when the primary route falls?
• A. The floating static route must have a lower administrative distance than the primary route
so it is used as a backup
• B. The administrative distance must be higher on the primary route so that the backup route
becomes secondary
• C. The floating static route must have a higher administrative distance than the
primary route so it is used as a backup correct
• D. The default-information originate command must be configured for the route to be installed
into the routing table
Question 7
Refer to the exhibit.

R1#show sp route
Codes: C - connected. S - static. R - R1P: M - mobile. B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF. SA - OSPF inter area
N1 - OSPF NSSA external type 1: N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPC external lype 2
i - IS •IS, su - IS-IS summary, L1 - lS-tS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, ’ - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is sucnetted, 5 subnets
D 10.1 2.0/24 [90/2170112' via 10.145.20.226, 00:01 :33: SerialO/O
D 10.1 .3.024 [90/21701 12? v-a 10,145.20,226. 00:01 :33, SerialQ/O
D 10 1 2.0/25 (90/21 70 i 12; via 10.145.20.126. 00:01 :33, SerialO/O
D 10.1 .3.0/25 [90/2170112; via 10.145.20.146.. 00:01:33. SerialO/0
D 10.1.4.0/25 [90/2170112] via 10. 145.20. 156. 00:0 1:33. Serial0/0
192 166.1.0/24 is variably subnetted, 2 s nonets, 2 masks
C 192.168.10.0/24 is directly connected, GigabitEthernelO/O
192 168.21.0/24 is variably subnetted, 2 subnets. 2 masks
C 192.168.11.0/24 is directly connected, GrgabtfEthernelO/l
10.165.20.0/24 is variably subnetted, 2 subnets. 2 masks
C 192. 168.20.224/24 is directly connected, SerialO/O
S 10.1.2.112/28 [1/0] via 10.165.20.166
What is the next hop for traffic entering R1 with a destination of 10.1.2.126?
• A. 10.165.20.166correct
• B. 10.165.20.126 wrong
• C. 10.165.20.146
• D. 10.165.20.226
Explanation
The static route destined to subnet 10.1.2.112/28 which ranges from 10.1.2.112 to 10.1.2.127
(increment: 16) so it also covers the destination of 10.1.2.126. The static route also has the lowest
AD (of 1) so the router will choose this path.
Question 8
Refer to the exhibit.
R 1# show ip route
Codes: C — connected, S — static, I — IGRP, R - RIP, M - mobile, B —BGP

D — EIGRP, EX - EIGRP external, O — OSPF, IA — OSPF inter area
N1 — OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
El - OSPF external type 1, E2 — OSPF external type 2, E — EGP
i —IS-IS, LI -IS-IS level-1, L2 — IS-IS level-2, * —candidate
default
U - per-user static route, o — ODR
Gateway of last resort is not set
C 172.16.0.0/16 is directly connected, LoopbackO
172.16.0/16 is variably subnetted, 4 subnets, 2 masks
O 172.16.1.3/3 [110/100] via 192.168.7.40, 00:39:08, SerialO
C 172.1 6.1.0/24 is directly connected, SerialO
O 172.16.1.184/29 [110/5] via 192.168.7.35, 00:39:08, SerialO
O 172.16.3.0/24 [110/10] via 192.168.7.4, 00:39:08, GigabitEthernet
0/0
D 172.16.1.0/28 [90/10] via 192.168.7.7, 00:39:08, GigabitEthernet 0/0
Load-balanced traffic is coming in from the WAN destined to a host at 172.16.1.190. Which
next-hop is used by the router to forward the request?
• A. 192.168.7.7
• B. 192.168.7.4
• C. 192.168.7.40
• D. 192.168.7.35 correct
Question 9
Refer to the exhibit.

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Net BI DS over T q p i p
An engineer is required to verify that the network parameters are valid for the users
wireless LAN connectivity on a /24 subnet. Drag and drop the values from the left onto the
network parameters on the right. Not all values are used.
192.168,1,1 host IP address
192.168,1,255 broadcast address
192.168,1,20 network address
B8“76“3F-7C-57‘DF default gateway
1A-76-3F-7C-57-DF MAC address
192.168.1 254 last assignable IP address
in the subnet
192.168.1.0

Note: You just need to click on one of the boxes on the right to match it with the
corresponding box on the left. For unused value, please match it with "Unused" option.
192.168.1.20
192.168.1.255
host IP address
broadcast address ■’
192.168.1.0 network address z
192.168.1.1 default gateway
B8-76-3F-7C-57-DF MAC address p
’
192.168.1.254 last assignable IP address in the subnet
1A-76-3F-7C-57-DF Unused
Explanation
+ host IP address: 192.168.1.20
+ broadcast address: 192.168.1.255
+ network address: 192.168.1.0
+ default gateway: 192.168.1.1
+ MAC address: B8-76-3F-7C-57-DF
+ last assignable IP address in the subnet: 192.168.1.254
Question 10
Refer to the exhibit.
MacOsS ifconlig
enO:. flags - 8863<UP.BROADCAST.SMART.RUN Nl NG.SIMPLEX MULTICAST-> mlu 1500
options=400<CHANNE L_IO>
ether 10:18:34:34:34
mel6 fe80::492:c09F5?cc:3343%en(} prelixten 64 secured soopeid 0x6
me! 10.8.138.14 netmask OxfrreOOO broadcast 10.8 159.255
nd6 op! cns«2Q1<PE RFOR MNUD,DAD>
media autosclcct
status: active
A network engineer must provide configured IP addressing details to investigate a firewall
rule issue. Which subnet and mask identify what is configured on the enO interface?
• A. 10.8.64.0/18
• B. 10.8.138.0/24
• C. 10.8.0.0/16
• D. 10.8.128.0/19 correct
Explanation
netmask OxffffeOOO means 255.255.224.0 or /19 (convert from hex to decimal) -> Answer
'10.8.128.0/19' is correct. We also notice the broadcast address is 10.8.159.255.
Question 1 1

Loading page 6...

Drag and drop the characteristic from the left onto the cable type on the right.
Please type the corresponding numbers of each item on the left to the blank below and sort
them in ascending order. For example: 1324 (which means 136 for first group, 245 for
second group).
Please type your answer here: 1324
Explanation
Answer:
multimode fiber:
+ uses multiple wavelengths of light
+ has increased attenuation over long distances
single-mode fiber:
+ has a core diameter of 9 microns
+ uses a single wavelength of light
Explanation
Single-mode fiber allows only one mode of light to propagate. Because of this, the number of light
reflections created as the light passes through the core decreases, lowering attenuation and creating
the ability for the signal to travel further. This application is typically used in long distance, higher
bandwidth.
Because of the high dispersion and attenuation rate with multimode fiber cable , the quality of the
signal is reduced over long distances.
Reference: https://www.multicominc.com/training/technical-resources/single-mode-vs-multi-mode-
fiber-optic-cable/
Question 12
What is a benefit of a point-to-point leased line?
• A. low cost
• B. simplicity of configuration correct
• C. full-mesh capability
• D. flexibility of design
Explanation
Point-to-point lines are usually leased from a service provider and are called leased lines...
The advantages of leased lines include

Loading page 7...

Simplicity: Point-to-point communication links require minimal expertise to install and maintain.
Reference: https://www.ciscopress.com/articles/article.asp?p=2202411&seqNum=7
Question 13
By default, how long will the switch continue to know a workstation MAC address after the
workstation stops sending traffic?
• A. 900 seconds
• B. 600 seconds wrong
• C. 300 secondscorrect
• D. 200 seconds
Explanation
The default MAC address age timeout is 300 seconds.
Question 14
What is the purpose of the service-set identifier?
• A. It identifies the wired network to which a network device is connected
• B. It identifies the wireless network to which an application must connect
• C. It identifies the wired network to which a user device is connected
• D. It identifies a wireless network for a mobile device to connect correct
Explanation
The service-set identifier (SSID) is a unique identifier that wireless networking devices use to establish
and maintain wireless connectivity.
Reference: https://www.dsco.com/c/en/us/td/docs/wireless/access_point/1300/12-
2_15_JA/configuration/guide/ol 3ssid.html
Question 15
Drag and drop the descriptions of IP protocol transmissions from the left onto the correct
IP traffic types on the right.
Sends Transmission in Sequence
Transmits packets individually
O Uses higher transmission rate to
support latency-sensitive apps
Uses a lower transmission
rate to ensure reliability
Transmissions include
an 8-byte header
7ran smits packet as stream
Note: Please type the corresponding numbers of each item on the left to the blank below
and arrange them ascendingly. For example: 136245 (which means 136 for first group, 245

Loading page 8...

for second group).
Please type your answer here: X145236 (correct answer: 146235)
Explanation
UDP is a simpler message-based connectionless protocol. In connectionless protocols, there is no
effort made to setup a dedicated end-to-end connection.
Datagrams - Packets are sent individually and are guaranteed to be whole if they arrive. Packets
have definite bounds and no split or merge into data streams may exist.
According to https://community.cisco.eom/t5/networking-documents/udp/ta-p/3114870
TCP is connection-oriented and UDP is connectionless. This means that before sending TCP packets, a
connection is established between the server and the client. This process of setting up a connection is
called TCP handshaking. The stream of packets is then sent over this connection -> TCP transmits
packet as stream.
Reference: https://www.vpnmentor.com/blog/tcp-vs-udp/
Question 16
What are two reasons to implement DHCP in a network? (Choose two)
• A. dynamic control over the best path to reach an IP address
• B. control the length of time an IP address is used by a network device correct
• C. access a website by name instead of by IP address
• D. reduce administration time in managing IP address ranges for clients correct
• E. manually control and configure IP addresses on network devices
Explanation
DHCP automatically issue IP address in configured ranges for clients -> Answer 'reduce administration
time in managing IP address ranges for clients' is correct.
With DHCP, we can control the length of time an IP address issued by DHCP lease time. This feature
determines how long a device can keep an IP address before renewing or releasing it -> Answer
'control the length of time an IP address is used by a network device' is correct.
Question 17
Order the DHCP message types as they would occur between a DHCP client and a DHCP
server.
First DHCPDISCOVER
Second DHCPREQUEST -
Third DHCPOFFER
Fourth DHCPACK
Explanation
There are four messages sent between the DHCP Client and DHCP Server: DHCP D ISCOVER,
DHCP O FFER, DHCP REQUEST and DHCP A CKNOWLEDGEMENT. This process is often abbreviated
as DORA (for Discover, Offer, Request, Acknowledgement).
Answer:
+ First: DHCPDISCOVER
+ Second: DHCPOFFER

Loading page 9...

+ Third: DHCPREQUEST
+ Fourth: DHCPACK
Question 18
How will Link Aggregation be implemented on a Cisco Wireless LAN Controller?
<="" div="" style="box-sizing: border-box;">
• A. When enabled, the WLC bandwidth drops to 500 Mbps
• B. The EtherChannel must be configured in "mode active"
• C. One functional physical port is needed to pass client traffic
correct
• D. To pass client traffic, two or more ports must be configured
Explanation
Link aggregation (LAG) is a partial implementation of the 802.3ad port aggregation
standard. It bundles all of the controller's distribution system ports into a single 802.3ad
port channel.
Restriction for Link aggregation:
+ LAG requires the EtherChannel to be configured for 'mode on' on both the controller and
the Catalyst switch - > Answer 'The EtherChannel must be configured in "mode active'" is
not correct.
+ If the recommended load-balancing method cannot be configured on the Catalyst
switch, then configure the LAG connection as a single member link or disable LAG on the
controller -> Answer 'To pass client traffic, two or more ports must be configured' is not
correct while answer 'One functional physical port is needed to pass client traffic
' is COlTCCt.
Reference: https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-
5/configuration-guide/b_cg75/b_cg75_chapter_0100010.html
Question 19
Which two events occur automatically when a device is added to Cisco DNA Center?
(Choose two)
• A. The device is placed into the Managed state. correct
• B. The device is assigned to the Global site. correct
• C. The device is placed into the Unmanaged state.
• D. The device is placed into the Provisioned state.
• E. The device is assigned to the Local site.
Explanation
Device in Global Site: When you successfully add, import, or discover a device, Cisco DNA Center
places the device in the Managed state and assigns it to the Global site by default. Even if you have
defined SNMP server, Syslog server, and NetFlow collector settings for the Global site, Cisco DNA
Center does not change these settings on the device.
Reference: https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-
and-management/dna-center/2-1-
2/admin_guide/b_cisco_dna_center_admin_guide_2_l_2/b_cisco_dna_center_admin_guide_2_l_l_c
hapter_010.html
Question 20
Refer to the exhibit.

Loading page 10...

SWl#show ip interface brief
Interface IP-Address
FastEthemetO/1 unassigned
OK? Method Status Protocol
YES manual down down
SWl#show interface faO/1 status
Port Name Status Vian Duplex Speed Type
FaO/1 notconnect 1 a-full a-100 10/100BaseTX
What is the cause of the issue?
• A. shutdown command
• B. STP
• C. port security
• D. wrong cable type correct
Explanation
The "Status" of faO/1 is "notconnect" so port security is not the issue or it would show the status of
"err - disabled".
"Shutdown" command is also not the issue as it would show "Administratively down" in the "Status"
field of the "show ip interface brief' command.
With STP, even if the port is in "Block" (BLK) status but it is still in "up/up" state with the "show ip
interface brief command.
With wrong cable type, the port is in "down/down" state, same as there is no connected cable to the
port.
Question 21
Refer to the exhibit. An engineer must add a subnet for a new office that will add 20 users
to the network. Which IPv4 network and subnet mask combination does the engineer
assign to minimize wasting addresses?
10.10.225.(1'28 10.10.22.5 10.10. 225, 20 Hosts
• A. 10.10.225.32 255.255.255.240
• B. 10.10.225.32 255.255.255.224 correct
• C. 10.10.225.48 255.255.255.224
• D. 10.10.225.48 255.255.255.240
Explanation
We need a subnet with 20 users so we need 5 bits 0 in the subnet mask as 2 5 - 2 = 30 > 20.
Therefore the subnet mask should be 727 (with last octet is 1110 0000 in binary). The increment is 32
so the valid network address is 10.10.225.32.
Question 22
Drag and drop the facts about wireless architectures from the left onto the types of access
point on the right. Not all options are used.

Loading page 11...

Cloud-Based Access Paint
configured and managed by a WLC
managed from a Wcb-bssed dashboard
© accessible for management ria Te'nct SSH. or a
Web GUI Lightweight Accass Point
supports different operational modes
supports automatic deployment
Please type the corresponding numbers of each item on the left to the blank below and sort
them in ascending order. For example: 1324 (which means 13 for first group, 24 for second
group).
Please type your answer here: 2514
Explanation
Answer:
Cloud-Based Access Point
+ managed from a Web-based dashboard
+ supports automatic deployment
Lightweight Access Point
+ configured and managed by a WLC
+ supports different operational modes
Question 23
Refer to the exhibit.
Which command must be executed for Gil /I on SW1 to passively become a trunk port if
Gi1/1 on SW2 is configured in desirable or trunk mode?
• A. switchport mode dynamic desirable wrong
• B. switchport mode dynamic autocorrect
• C. switchport mode dotl-tunnel
• D. switchport mode trunk
Explanation
To form a trunk in this question, we can use either (dynamic) "auto" or (dynamic) "desirable" mode or
even "trunk" mode but only dynamic auto mode will passively form a trunk port.

Loading page 12...

Dynamic
Auto
E?ynsmit;
Desir zttjft TunK Accr
.'<-*
Dynamic
Auto Access Trunk Tttiik ACCMS
Dynamic
Owwabto Trunk Tri/ik Trunk Access
Trunk Trtxik Trunk Lilted
Connectivity
Access Access Access LJTiried
Connectivity Access
Question 24
In QoS, which prioritization method is appropriate for interactive voice and video?
• A. low-latency queuing correct
• B. round-robin scheduling
• C. traffic policing
• D. expedited forwarding
Explanation
Low Latency Queuing (LLQ) adds strict priority to the CBWFQ and allows delay sensitive data (Voice
and Video) to be dequeued and sent before lower priority packets. This practice gives delay sensitive
data preferential treatment over other traffic.
Note: The Expedited Forwarding (EF) model is used to provide resources to latency (delay) sensitive
real-time, interactive traffic and it is suitable to use with voice and video traffic but it is not considered
a "prioritization method".
Question 25
Refer to the exhibit.
Switch A Switch B

Loading page 13...

Switch A
Vian 10 11,12,13
interface GigabitEthernetL. I
swifchport mode trunk
switchpuil trunk allowed vlan 10-12
i
interface GlgaDltEthemett),'4
switchport access vlan 13
switchport mode access
Switch B
Vlan 10,11,12,13
interface GigabitEthemetO/l
switchport mode trunk
I
interface GigabitEthernetO/3
switchport access vlan 13
switchpcrt mode access
A network engineer must configured communication between PC A and the File Server. To
prevent interruption for any other communications, which command must be configured?
• A. Switchport trunk allowed vlan add 13 correct
• B. Switch trunk allowed vlan 12
• C. Switchport trunk allowed vlan remove 10-11
• D. Switchport trunk allowed vlan none
Explanation
Switch A does not allow VLAN 13 to go through so we must add VLAN 13 to the allowed list of
interface GiO/1 of SwitchA by the command "switchport trunk allowed vlan add 13".
Question 26
Refer to the exhibit.
R2#show ip route
C 192.168.1.0/26 is directly connected, FastEthernetO/1
Which two prefixes are included in this routing table entry? (Choose two)
• A. 192.168.1.17 correct
• B. 192.168.1.127
• C. 192.168.1.64
• D. 192.168.1.61 correct
. E. 192.168.1.254
Question 27
Refer to the exhibit.

Loading page 14...

TanGigabilEthemetO/O/O is up, line protocol is up
Hardware Is 9UILT-IN-2T-6X1GE, address is 74aO.2f7a.Ol23 (bia 74a0.2f7a.0l23)
Description: Uplihk
internet address is 10.1.1.1.'24
MTU 15C0 bytes, BW 10000000 Kbil/sec, DLY 10 usee,
reliability 255'255 txioad 1/255, rxlaad 1/255
Encapsulation ARPA. loopback not sec
Keepalive not supported
Full Duplex, 10000Mbps, link type is force-up. media type is unknown media type
output flow control is on input flow-control is on
ART type. ARPA, ARP Timeout 04:0Q DQ
Last input 00:00 00 oufpi.t 00 05:40, output hang never
Last clearing of "show interlace" counters never
Input queue: 0/375:0/0 ize'maK',drops,’flushes} Total output drops: 0
Queueing strategy: fife
Output queue: C/40 (size/max)
5 minute input rate 6160000 bi|£/secr 1113 packets/see
5 mmuie output rate 11213Q0C bats/sec, 1553 packets/seo
12662416065 packets input. 12607032232.894 bytes, 0 no butter
Received 14117163 broadcasts (0 IP multicasts)
0 runts. 0 giants, 0 throttles
0 input erro s, 0 CRC. 0 frame, 0 overrun, 0 ignored
0 watchdog 26271385 multicast, 0 pause Input
7907770050 packets outpul, 5072790424092 bytes, 0 underruns
Ooutpu: errors, 866241 4049 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late cod oion, 0 deterred
0 ost carrier C no carrier. 0 pause output
0 outpu: buffer failures. 0 output buffers swapped out
1 carrier transitions
Traffic that is flowing over interface TenGigabitEthemetO/O experiences slow transfer
speeds. What is the reason for the issue?
• A. heavy traffic congestion
• B. queuing drops
• C. a speed conflict
• D. a duplex incompatibility correct
Explanation
We see the collisions are very high compared to the packets output. The is usually the result of duplex
mismatch (one is half-duplex, one end is full-duplex for example)
Question 28
Which interface condition is occurring in this output?
R25# show interface faO/O
FastEthemetO/O is up, line protocol is up
Hardware is DEC21140, address is ca02.7788.0000 (bia ca02.7788.0000)
Description: singapore_subnet
Internet address is 10.32.102.2/30

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MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usee,
reliability 255/255, txload 255/255, rxload 255/255
Encapsulation ARPA, loopback not set
Keepalive set (60 sec)
Full-duplex, 100 Mb/s, lOOBaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:01, output 00:00:00, output hang never
Last clearing of 'show interface' counters never
Input queue: 0/300/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/300 (size/max)
30 second input rate 225953751 bits/sec, 0 packets/sec
30 second output rate 232423817 bits/sec, 0 packets/sec
7331 packets input, 7101162 bytes
Received 267 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
3927 packets output, 1440403 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
• A. high throughput correct
• B. collisions
• C. duplex mismatch
• D. bad NIC
Explanation
Both txload and rxload on this interface are "255/255" so this interface is busy in transmitting and
receiving traffic.
Question 29
Which device separates networks by security domains?
• A. wireless controller
• B. firewall correct
• C. intrusion protection system
• D. access point
Question 30
What is represented by the word "R20" within this JSON schema?
1
2
[
{'firewall': 'FW12', 'port':'e0/23'},

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{'router': 'R20', 'port':'te5/5'},
{'switch': 'SW25', 'port':'ge1/36'},
J
3
4
5
• A. object
• B. array
• C. value correct
• D. key
Explanation
JSON syntax structure:
+ A key/value pair consists of a key (must be a string in double quotation marks " ), followed by a
colon : , followed by a value. For example: "name":"John"
Therefore in this question, "router" is the key while "R20" is the value.
Question 31
Which IPv6 address type provides communication between subnets and cannot route on the
Internet?
• A. multicast
• B. global unicast
• C. link-local
• D. unique local correct
Explanation
A IPv6 Unique Local Address is an IPv6 address in the block FCOO::/7. It is the approximate IPv6
counterpart of the IPv4 private address. It is not routable on the global Internet.
Note: In the past, Site-local addresses (FEC0::/10) are equivalent to private IP addresses in IPv4 but
now they are deprecated.
Link-local addresses only used for communications within the local subnet. It is usually created
dynamically using a link-local prefix of FE80::/10 and a 64-bit interface identifier (based on 48-bit
MAC address).
Question 32
Which command can you enter to allow Telnet to be supported in addition to SSH?
• A. no transport input telnet
• B. privilege level 15
• C. transport input telnet ssh correct
• D. transport input telnet
Question 33
Which type of API would be used to allow authorized salespeople of an organization access
to internal sales data from their mobile devices?
• A. open
• B. partner
• C. private correct
• D. public
Explanation
There are three types of API:
+ Open APIs (Public APIs) - These APIs are publicly available and can be used with no restrictions.
Because these APIs are public, many API providers require the user to get a free key, or token, prior
to using the API. This is to help control the number of API requests they receive and process.

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9TUT CCNA Exam 102 Questions

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