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The Designing Cisco Network Service Architectures (ARCH) exam (300-320) is a 75-minute assessment with 60 – 70 questions associated with the Cisco Certified Design Professional certification. This exam tests a candidate's knowledge of the latest development in network design and technologies, including L2 and L3 infrastructures for the enterprise, WAN technologies, data center integration, network security and network services.


Share some CCDP 300-320 exam questions and answers below.
Which technology extends Layer 2 LANs over any network that supports IP?
A. OTV
B. VSS
C. vPC
D. VLAN
Answer: A

Which option is a common cause of congestion found in a campus network?
A. input serialization delay
B. output serialization delay
C. Rx-queue starvation
D. Tx-queue starvation
Answer: D

Which option is the Cisco preferred, most versatile, and highest-performance way to deploy IPv6 in existing IPv4 environments?
A. dual stack
B. hybrid
C. service block
D. dual service
Answer: A

A network manager wants to securely connect a new remote site to the existing headquarters site using a VPN technology that meets security requirements.
Which VPN technology should be used?
A. GRE
B. IPsec
C. remote-access VPN
D. L2TP VPN
Answer: B

Which option is the Cisco recommendation for data oversubscription for access ports on the access-todistribution uplink?
A. 4 to 1
B. 20 to 1
C. 16 to 1
D. 10 to 1
Answer: B

CoS is applied for Layer 2 markings in an Ethernet environment.
Which protocol must be configured on the Layer 2 switch port for CoS to work?
A. MPLS
B. IEEE 802.1W
C. IEEE 802.1Q
D. IEEE 802.1S
Answer: C

Which three options are benefits of using VRFs within an enterprise network? (Choose three.)
A. simplifies configuration and troubleshooting
B. enables partitioning of network resources
C. enhances security between user groups
D. provides additional redundancy at Layer 3
E. allows for routing and forwarding separation
F. improves routing protocol convergence
Answer: BCE

What is the maximum number of routers that each OSPF area (including the backbone) should contain?
A. 30
B. 10
C. 50
D. 60
Answer: C

Which first-hop redundancy protocol that was designed by Cisco allows packet load sharing among groups of redundant routers?
A. GLBP
B. HSRP
C. VRRP
D. VSS
Answer: A

Private lines make use of which connection type based on cell switching?
A. ATM
B. ISP MPLS VPN
C. VTI
D. VPLS
Answer: A

Which route summarization most efficiently reduces perceived network complexity that is composed of subnetworks ranging from 172.16.20.0/24 to 172.16.36.0/24?
A. 172.16.8.0/21
B. 172.16.8.0/19
C. 172.16.20.0/20
D. 172.16.0.0/18
E. 172.16.20.0/19
Answer: D

Which feature can be used in the Cisco Nexus 7000 to create a snapshot of the current configuration?
A. Cisco FabricPath
B. HSRP
C. Rollback
D. vPC
Answer: C

Port security supports which type of port?
A. SPAN destination port
B. EtherChannel port-channel port
C. Nonnegotiating trunk port
D. DTP-enabled trunk port
Answer: C

Which option prevents the dropping of asymmetrically routed packets in active/active failover paired firewalls?
A. Nothing can be done to prevent this from happening.
B. Configure different policies on both firewalls.
C. Assign similar interfaces on each firewall to the same asymmetric routing group.
D. Assign similar interfaces on each firewall to a different asymmetric routing group.
Answer: C

EIGRP uses which algorithm to build a routing table?
A. Dijkstra's algorithm
B. Floyd-Warshall algorithm
C. Diffusing Update Algorithm
D. Johnson's algorithm
Answer: C


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Share some HCNP-R&S H12-224-ENU exam questions and answers below.
Which of the following NAT functions are supported by the Eudemon?
A. NAT/PAT
B. NAT ALG
C. Bidirectional NAT
D. NAT server
Answer: ABCD

Which of the following technologies does the Eudemon use to defense against Anti-DDoS attacks?
A. TCP agent
B. Source authentication and detection
C. Standard protocol stack identification
D. Fingerprint identification (characteristics detection)
E. Abnormal session detection
F. Traffic control
Answer: ABCDEF

The firewall can be working in routing mode, transparent mode, or composite mode. The default mode is the composite mode.
A. True
B. False
Answer: B

Which of the following solutions effectively defend against ARP attacks?
A. Binding a MAC address and an IP address
B. Enabling the ARP attack protection function on a Huawei switching device
C. Adding network segments to different VLANs on a switch
D. Enabling IP packet filtering
Answer: ABC

Which of the following data traffic is incoming data traffic on the Eudemon?
A. Data traffic from a Trust zone to a demilitarized zone (DMZ)
B. Data traffic from an Untrust zone to a DMZ
C. Data traffic from a Local zone to a Trust zone
D. Data traffic from an Untrust zone to a Local zone
Answer: BD

Which of the following statements are correct regarding Master in VRRP?
A. The router with highest priority will become Master.
B. The router with smallest priority will become Slave.
C. The router with highest priority may not always be Master.
D. The router with smallest priority may not always be Slave.
Answer: CD

Assume that the trace route test is used to detect the packet forwarding path and tracert packets have passed through the firewall.
Which of the following attack protection functions needs to be disabled to normally display the tracert result?
A. ICMP-redirect
B. ICMP-unreachable
C. Tracert
D. Smurf
Answer: C

To process fragmented service packets on an NAT-enabled firewall which of the following functions needs to be enabled?
A. Transparent fragment transmission
B. Fragment cache
C. Fragment reassembly
D. MTU check
Answer: B

What is the maximum bits of a Class C address can be used for subnet?
A.6
B.8
C.12
D.14
Answer: A

Which of the following statements are correct regarding priority in VRRP?
A. The IP address owner always uses 255 as its priority regardless its config priority.
B. The IP address owner always uses o as its priority regardless its config priority.
C. We can configure the priority as o to make the router never attend the Master election.
D. If a VRRP router changes from Master to Slave, it will send out a VRRP message with priority o in the network.
Answer: A

Which of the following authentication modes does VRRP use?
A. No authentication
B. Simple text password
C. MD5
D. CHAP
Answer: ABC

The Eudemon supports load balancing between multiple uplinks.
A. True
B. False
Answer: A

Besides an IPv4 address, a router distinguisher (RD) also contains a flag that distinguishes IP routes to the same destination IP address in different VPNs.
How many bits are there in the flag?
A. 16
B. 32
C. 64
D. 128
Answer: C

When an Eudemon is working in composite mode, some of its interfaces are configured with lP addresses (Layer 3 interfaces) and the other interfaces are not configured with IP addresses (Layer 2 interfaces) .
To enable dual-system hot backup on an Eudemon, you can configure the Eudemon to work in composite mode.
A. True
B. False
Answer: A

Which of the following statements about the security policies for the Eudemon are true?
A. By default, a user in the Local zone can access other zones.
B. By default, a user in the Trust zone can access the DMZ.
C. By default, a user in the Untrust zone cannot access the Trust zone.
D. By default, a user in a zone of the firewall cannot access any other zone of the firewall.
Answer: CD

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