Supporting Cisco Collaboration Devices (CLTECH 100-890) Practice Exam

Supporting Cisco Collaboration Devices Exam (CLTECH 100-890) Exam Prep

Mastering modern collaboration technologies is no longer optional—it’s essential. The Supporting Cisco Collaboration Devices (CLTECH 100-890) exam is designed for IT professionals aiming to demonstrate their skills in supporting and maintaining Cisco collaboration endpoints and related devices. Whether you’re pursuing a Cisco certification or seeking to validate your hands-on knowledge, this exam evaluates your ability to work with key collaboration tools used in today’s enterprise environments.

This practice exam has been thoughtfully developed to reflect the real-world scenarios and technical intricacies that candidates are likely to face. It’s structured around the core domains of the CLTECH 100-890 blueprint and goes beyond theoretical content to focus on practical application, troubleshooting, and device management.

From Cisco IP Phones to video endpoints, this resource ensures that you’re prepared to tackle issues ranging from installation and configuration to diagnostics and basic repairs. It also tests your understanding of device security, endpoint registration, firmware upgrades, and connectivity to Cisco Unified Communications Manager (CUCM).

What This Practice Exam Covers:

• Troubleshooting Cisco collaboration endpoints and peripheral devices
• Identifying and resolving issues in physical setups and configurations
• Understanding collaboration protocols and registration methods
• Diagnosing network connectivity and communication problems
• Supporting security implementations and firmware updates
• Managing cloud-based and on-premises Cisco endpoints

Why This Resource Stands Out:

Each practice question is engineered to simulate the type of thought process and analysis required in the actual certification exam. This includes recognizing patterns, applying logical reasoning, and selecting best practices in multi-step troubleshooting processes. The goal is not just memorization, but comprehension and mastery.

Additionally, this practice exam emphasizes realistic timing, helping you get accustomed to the pace required during the official exam. You’ll build confidence through repetition and sharpen your focus on weak areas through targeted review.

Who Should Use This Practice Exam:

This resource is ideal for:

• IT support professionals working with Cisco collaboration products
• Candidates pursuing Cisco certification as a Collaboration Support Technician
• Entry-level network engineers expanding their skill set in unified communications
• Technical support staff seeking to validate their expertise

Benefits of Studying with This Resource:

• In-depth preparation aligned with Cisco’s current exam blueprint
• Exposure to varied question formats, including scenario-based and multiple-choice
• Enhanced troubleshooting confidence through simulation-style questions
• Comprehensive coverage of on-premises and cloud-based endpoint support
• Improved readiness for working in real-time support environments

Whether you’re supporting IP telephony systems or diagnosing endpoint issues in a live deployment, this resource gives you the edge needed to succeed in the CLTECH 100-890 certification process. It’s more than just a study aid—it’s a professional development tool that empowers you with the insights, logic, and readiness required in today’s tech-driven collaboration landscape.

Sample Questions and Answers

Which protocol is primarily used by Cisco IP Phones to register with the Cisco Unified Communications Manager?
A) SCCP (Skinny Client Control Protocol)
B) SIP (Session Initiation Protocol)
C) H.323
D) MGCP (Media Gateway Control Protocol)

Answer: A) SCCP (Skinny Client Control Protocol)
Explanation: Cisco IP Phones commonly use SCCP to communicate with Cisco Unified Communications Manager (CUCM), allowing call control and signaling. SIP is also supported, but SCCP is Cisco proprietary and widely used for Cisco endpoints.

What is the default port number used by Cisco IP Phones for SCCP signaling?
A) 5060
B) 2000
C) 1720
D) 80

Answer: B) 2000
Explanation: SCCP signaling between Cisco IP Phones and CUCM occurs over TCP port 2000 by default. Port 5060 is commonly used for SIP.

Which Cisco collaboration device acts as a centralized platform for endpoint device registration, call control, and services?
A) Cisco Unified Border Element (CUBE)
B) Cisco Unified Communications Manager (CUCM)
C) Cisco Unified Contact Center Express (UCCX)
D) Cisco Unified Presence Server

Answer: B) Cisco Unified Communications Manager (CUCM)
Explanation: CUCM manages call control, device registration, and features for Cisco IP endpoints in an enterprise environment.

A Cisco IP Phone is displaying “Not Registered” status. What is the first step to troubleshoot?
A) Verify physical Ethernet connection and switch port configuration.
B) Reset the phone to factory defaults.
C) Update CUCM software.
D) Replace the phone’s power adapter.

Answer: A) Verify physical Ethernet connection and switch port configuration.
Explanation: The most common cause for phones not registering is network connectivity or VLAN issues. Confirming physical and network settings is the first step.

Which VLAN is typically used for Cisco IP Phone traffic in a converged network environment?
A) Data VLAN
B) Voice VLAN
C) Management VLAN
D) Guest VLAN

Answer: B) Voice VLAN
Explanation: Voice VLAN separates voice traffic from data traffic for QoS and security purposes.

What command on a Cisco switch shows the voice VLAN configured on a switch port?
A) show vlan voice
B) show interface switchport
C) show vlan brief
D) show voice vlan

Answer: B) show interface switchport
Explanation: The show interface switchport command displays detailed port settings, including voice VLAN configuration.

Which protocol is used by Cisco phones to download firmware files?
A) TFTP (Trivial File Transfer Protocol)
B) FTP (File Transfer Protocol)
C) HTTP
D) SCP

Answer: A) TFTP (Trivial File Transfer Protocol)
Explanation: Cisco IP Phones use TFTP to download firmware and configuration files from CUCM or other TFTP servers.

What is the purpose of the Cisco Unified Communications Manager Express (CME)?
A) To provide call control in small to medium-sized Cisco voice deployments.
B) To replace CUCM in large enterprises.
C) To provide SIP trunking only.
D) To act as a media gateway for analog phones.

Answer: A) To provide call control in small to medium-sized Cisco voice deployments.
Explanation: CME runs on Cisco routers and provides call control and phone management for smaller deployments without needing full CUCM.

Which Cisco device is used to securely connect an on-premises Cisco voice network with a service provider or cloud-based PBX?
A) Cisco Unified Border Element (CUBE)
B) Cisco Unified Communications Manager (CUCM)
C) Cisco Unified Contact Center Express (UCCX)
D) Cisco ISR Router

Answer: A) Cisco Unified Border Element (CUBE)
Explanation: CUBE acts as a SIP session border controller, providing security, interoperability, and call control at the network edge.

What is the primary function of Cisco Jabber?
A) Video conferencing only
B) Instant messaging, presence, voice, and video communication
C) Firewall security
D) Device provisioning

Answer: B) Instant messaging, presence, voice, and video communication
Explanation: Cisco Jabber is a collaboration application that provides messaging, presence, voice, video, and conferencing.

In Cisco IP Phones, which LED color typically indicates a missed call?
A) Solid green
B) Blinking red
C) Solid red
D) Blinking green

Answer: B) Blinking red
Explanation: A blinking red LED on Cisco phones usually indicates a missed call or voicemail notification.

Which Cisco endpoint is a video conferencing device designed for huddle rooms and small conference rooms?
A) Cisco IP Phone 8800 series
B) Cisco Webex Room Kit Mini
C) Cisco Unified IP Conference Station 7937
D) Cisco Jabber

Answer: B) Cisco Webex Room Kit Mini
Explanation: The Webex Room Kit Mini is designed for small spaces, providing video conferencing and content sharing.

What feature does Cisco’s SRST (Survivable Remote Site Telephony) provide?
A) Backup call control during WAN failure
B) Voice mail services
C) Video conferencing
D) SIP trunk security

Answer: A) Backup call control during WAN failure
Explanation: SRST allows local call control on Cisco routers when connectivity to the main CUCM is lost.

Which tool is used to collect logs from Cisco IP Phones for troubleshooting?
A) Cisco Prime Collaboration
B) Cisco Unified Communications Manager Real-Time Monitoring Tool (RTMT)
C) Wireshark
D) Cisco Network Assistant

Answer: B) Cisco Unified Communications Manager Real-Time Monitoring Tool (RTMT)
Explanation: RTMT is used to monitor and collect logs from CUCM and endpoints.

What is the default DHCP option that instructs Cisco IP Phones where to find the TFTP server?
A) Option 43
B) Option 150
C) Option 66
D) Option 54

Answer: B) Option 150
Explanation: DHCP Option 150 provides the IP address of the TFTP server for Cisco IP Phones to download configuration files.

Which protocol does Cisco Jabber use for presence information?
A) SIP SIMPLE
B) XMPP (Extensible Messaging and Presence Protocol)
C) LDAP
D) HTTP

Answer: A) SIP SIMPLE
Explanation: Cisco Jabber uses SIP SIMPLE for presence and instant messaging.

You need to upgrade the firmware on Cisco IP Phones remotely. Which CUCM feature allows this?
A) Device Profiles
B) Software Load Distribution
C) TFTP Server Configuration
D) Bulk Administration Tool (BAT)

Answer: D) Bulk Administration Tool (BAT)
Explanation: BAT enables bulk operations including firmware upgrades across many phones simultaneously.

Which Cisco IP Phone feature allows users to place a call on hold and retrieve it from another phone?
A) Call Forwarding
B) Call Park
C) Call Pickup
D) Call Transfer

Answer: B) Call Park
Explanation: Call Park lets users place a call on hold and retrieve it from another phone within the system.

What is the function of Cisco Unified Communications Manager Device Pool?
A) Grouping devices for common region, date/time, and codec settings
B) Managing user credentials
C) Assigning IP addresses to phones
D) Grouping voice mailboxes

Answer: A) Grouping devices for common region, date/time, and codec settings
Explanation: Device Pools simplify management by grouping devices sharing settings like codec preference and location.

When troubleshooting a Cisco IP Phone that shows “Not Registered” error, which log file on CUCM should be checked first?
A) Call Detail Records (CDR)
B) Cisco Unified CM Trace Files (CCM Logs)
C) Syslog server logs
D) DHCP logs

Answer: B) Cisco Unified CM Trace Files (CCM Logs)
Explanation: CCM logs provide detailed information about registration attempts and failures.

Which Cisco endpoint supports both SIP and SCCP signaling protocols?
A) Cisco Unified IP Phone 7945
B) Cisco Webex Board
C) Cisco Unified Video Advantage
D) Cisco Jabber

Answer: A) Cisco Unified IP Phone 7945
Explanation: The 7945 supports both SIP and SCCP protocols for call signaling.