350-401 Practice Questions 1 — 50 Questions

Question 1

Examine the following EIGRP configuration snippet:

interface GigabitEthernet0/0
 ip bandwidth-percent eigrp 100 50

What is the effect of this command?

Accepted Answer

EIGRP will use up to 50% of the interface bandwidth for its control traffic.. The `ip bandwidth-percent eigrp 100 50` command configures EIGRP to use up to 50% of the interface's configured bandwidth for its control traffic (hello, update, query, and reply packets). This limits the amount of bandwidth EIGRP can consume to prevent it from starving other traffic. The percentage is applied to the interface's `bandwidth` setting, not the actual physical link speed.

Answer

EIGRP will only advertise routes that have a metric within 50% of the best path.

Answer

EIGRP will use 50% of the interface bandwidth for data traffic.

Answer

EIGRP will reduce its hello interval by 50%.

Question 2

Drag and drop the steps of SSL VPN (AnyConnect) session establishment into the correct order, from first to last.

Accepted Answer

Client initiates TLS handshake with ASA. AnyConnect session establishment begins with the client establishing a TLS tunnel to the ASA headend. The ASA presents its digital certificate for authentication. The client then authenticates the user, and the ASA assigns an IP address from a pool. Finally, the client installs the virtual adapter and the session is established.

Question 3

Drag and drop the steps of deploying a CoPP policy on a Cisco IOS-XE router into the correct order, from first to last.

Accepted Answer

Create access-lists for traffic classification. Deploying CoPP requires first defining ACLs to classify traffic, then creating class maps, then a policy map, then applying it to the control plane, and finally verifying the policy.

Question 4

Drag and drop the steps of OSPF summarization at ABR configuration steps into the correct order, from first to last.

Accepted Answer

Identify subnets to summarize. First, identify the subnets to summarize into a single prefix. Then, configure the area range command on the ABR under the OSPF process, specifying the area and the summary prefix. Optionally, set the 'not-advertise' keyword to suppress the summary. Verify the summary route in the OSPF database using 'show ip ospf summary-address'. Finally, check that the summary route appears in the routing table of other routers.

Question 5

Drag and drop the steps of Cisco IOS-XE mdt subscription via CLI configuration into the correct order, from first to last.

Accepted Answer

Enter telemetry configuration mode. The CLI configuration order follows Cisco IOS-XE syntax: enter telemetry mode, define subscription, set receiver, specify stream, and apply sensor path.

Question 6

Drag and drop the steps of DHCP snooping operation on a Cisco switch into the correct order, from first to last.

Accepted Answer

Enable DHCP snooping globally. DHCP snooping begins by enabling the feature globally with 'ip dhcp snooping'. Then, the feature is enabled on specific VLANs. Trusted interfaces (typically uplinks to DHCP servers) are configured with 'ip dhcp snooping trust'. The switch then intercepts DHCP messages, building the DHCP snooping binding database from valid server responses. Finally, any DHCP server messages received on untrusted interfaces are dropped to prevent rogue server attacks.

Question 7

Drag and drop the steps of SD-WAN zero-touch provisioning (ZTP) flow into the correct order, from first to last.

Accepted Answer

Device boots and obtains IP via DHCP. The ZTP flow begins with the device obtaining an IP address via DHCP, then contacting the cloud portal to authenticate and receive the vManage list, followed by establishing a DTLS connection to vManage, downloading the full configuration, and finally joining the control plane.

Question 8

Drag and drop the steps of YANG data model traversal for interface stats into the correct order, from first to last.

Accepted Answer

Identify YANG module for interface statistics. The process starts with identifying the YANG module, then navigating the tree to the interface container, retrieving statistics, and optionally filtering or using NETCONF/RESTCONF.

Question 9

Drag and drop the steps of using a Python REST API call to retrieve device configuration via Cisco DNA Center into the correct order, from first to last.

Accepted Answer

Authenticate to DNA Center API and get token. The process begins with authenticating to the DNA Center API to obtain a token. Then, the device UUID is retrieved using a GET request to the device list endpoint. Next, a GET request is sent to fetch the running configuration for that device. The JSON response is parsed to extract the configuration text. Finally, the configuration is saved to a local file.

Question 10

Drag and drop the steps of gRPC dial-in telemetry session from collector into the correct order, from first to last.

Accepted Answer

Collector opens gRPC channel to device. The collector initiates the connection, authenticates, requests data, and the device streams telemetry back until the session ends.

Question 11

Drag and drop the steps of Multiple SPAN source ports with filter VLAN into the correct order, from first to last.

Accepted Answer

Create SPAN session number. First specify the session, then add source ports and direction, apply VLAN filter, set destination, and activate the session.

Question 12

Drag and drop the steps of NAPALM get_facts() retrieval from IOS-XE device into the correct order, from first to last.

Accepted Answer

Import napalm and get_network_driver. The correct order starts with importing the NAPALM library and driver, then creating a driver object with device credentials, calling the open() method to establish the connection, invoking get_facts() to retrieve device facts, and finally closing the connection.

Question 13

Drag and drop the steps of Netconf/Yang-based device monitoring subscription into the correct order, from first to last.

Accepted Answer

Establish NETCONF over SSH. First establish a NETCONF session, then subscribe to a YANG data stream, and finally receive periodic push updates.

Question 14

Drag and drop each SD-WAN policy type on the left to its matching application point on the right.

Accepted Answer

App-route policy: Applied to data traffic for SLA-based path selection. App-route policies are applied to data traffic to influence path selection; cflowd policies enable flow monitoring; data policies control forwarding and NAT; control policies affect routing and TLOC advertisements; VPN membership policies control which VPNs are active on a device.

Question 15

Drag and drop the steps of Private VLAN (PVLAN) configuration steps into the correct order, from first to last.

Accepted Answer

Create the primary VLAN with vlan <id>. PVLAN configuration requires first creating the primary VLAN, then the secondary VLANs (community or isolated), associating them, and finally configuring host ports as PVLAN ports. The order ensures proper VLAN hierarchy and port assignment.

Question 16

Drag and drop each HTTP method on the left to its matching REST operation on the right.

Accepted Answer

GET: Retrieve a resource. GET retrieves; POST creates; PUT replaces; DELETE removes; PATCH partially updates.

Question 17

Drag and drop each Netmiko device type on the left to its matching operating system on the right.

Accepted Answer

cisco_ios: Cisco IOS (classic). cisco_ios is for classic IOS; cisco_nxos is for NX-OS; cisco_xr is for IOS-XR; cisco_xe is for IOS-XE.

Question 18

Drag and drop each Python library on the left to its matching network use case on the right.

Accepted Answer

Netmiko: Simplifies SSH connections to network devices. Netmiko simplifies SSH to network devices; NAPALM provides multi-vendor abstraction; Nornir is task-based and parallel; Scrapli is async-focused; Paramiko is low-level SSH.

Question 19

Drag and drop each WAN transport type on the left to its matching SD-WAN characteristic on the right.

Accepted Answer

MPLS: Predictable latency and SLA, private Layer 3 VPN. MPLS provides predictable SLA and private connectivity; Broadband (Internet) offers low cost but variable quality; LTE/4G/5G provides wireless backup with lower bandwidth; Satellite offers high latency global coverage; Metro Ethernet provides high-speed metro-area connectivity.

Question 20

Drag and drop the steps of QoS policing with two-rate three-color marker (RFC 2698) into the correct order, from first to last.

Accepted Answer

Define class-maps to match traffic. First, configure the police command with cir, pir, and conform, exceed, violate actions. Then, apply the policy to the interface. The marker uses CIR and PIR to assign colors.